Ground Communication Research Articles

RON‐based cross‐chain routing optimization strategy in metaverse

AbstractMetaverse is a new ecology that integrates the digital world with the physical world, generates a mirror image of the real world based on digital twin technology, and guarantees the fairness of the virtual world through the trusted mechanism of blockchain. Cross‐chain communication technology is the key to realizing data circulation and collaborative processing between blockchains, which provides the communication foundation for the massive connection of blockchains in the metaverse. The current cross‐chain communication mode is dominated by direct‐connect routing, leading to network congestion and high propagation delay once the direct‐connect link fails and cannot be recovered quickly. To optimize direct‐connect routing, this paper proposed a cross‐chain routing optimization strategy based on RON (Resilient Overlay Network), that is, Cross‐Chain_RON, which firstly applies RON to reconstruct the direct‐connect routing model, and then selects the optimal link through the shortest‐path algorithm and policy routing, and combines with the RON performance database to improve the data transmission efficiency. Finally, the two communication modes were simulated by simulation tools. The experiments show that Cross‐Chain_RON outperforms the direct‐connect routing in terms of latency, rate of successful data transmission, and throughput in poor network environments, but at the expense of a certain amount of system overhead.

Enhancing Data Security through Machine Learning-based Key Generation and Encryption

In an era marked by growing concerns about data security and privacy, the need for robust encryption techniques has become a matter of paramount importance. The primary goal of this study is to protect sensitive information during transmission while ensuring efficient and reliable decryption at the receiver's side. To generate robust and unique cryptographic keys, the proposed approach trains an autoencoder neural network based on hashing and optionally generated prime numbers in the MNIST dataset. The key serves as the foundation for secure communication. An additional security layer to the cryptographic algorithm passing through the first ciphertext, was employed utilizing the XORed and Blum-Blum-Shub (BBS) generators to make the system resistant to various types of attacks. This approach offers a robust and innovative solution for secure data transmission, combining the strengths of autoencoder-based key generation and cryptographic encryption. Its effectiveness is demonstrated through testing and simulations.

Blockchain-assisted full-session key agreement for secure data sharing in cloud computing

Data sharing in cloud computing allows multiple data owners to freely share their data resources while security and privacy issues remain inevitable challenges. As a foundation of secure communication, authenticated key agreement (AKA) scheme has been recognized as a promising approach to solve such problems. However, most existing AKA schemes are based on the cloud-based architecture, privacy and security issues will inevitably occur once the centralized authority is attacked. Besides, most previous schemes require an online registration authority for authentication, which may consume significant resources. To address these drawbacks, for secure data sharing in cloud computing, a blockchain-assisted full-session key agreement scheme is proposed. After the registration phase, the registration authority does not engage in authentication and key agreement process. By utilizing blockchain technology, a common session key between the remote user and cloud server can be negotiated, and a shared group key among multiple remote users can be negotiated without private information leakage. Formal and informal security proof demonstrated the proposed scheme is able to meet the security and privacy requirements. The detail performance evaluation shows that the proposed scheme has lower computation costs and acceptable communication overheads while superior security is ensured.

The Use of Up-to Date Analyses for the Temporary Bridges Application in the Present

Abstract Bridges are a critical element of the transport network. In case of neglected maintenance, war conflict or natural disaster, they may be damaged or destroyed. An alternative solution in the form of a detour is mostly feasible only in the case of ground communication. But even in this case, it can be a very difficult and lengthy solution. Therefore, temporary bridges are often used to replace the permanent bridge structure for a certain time. The history of temporary bridges is essentially as old as that of permanent bridges. The first patented temporary bridge was the Eifel Bridge, which had a span of up to 60.0 m in 1888. Before the Second World War, the most widespread structures were the German S-bridge with spans of up to 15.0 m, Herbert-brücke with a span of up to 25.0 m and the English Bailey bridge system. In the post-war era, the ŽM 60 temporary bridge was designed as a universal bridge structure, which was to serve to temporarily bridge obstacles of medium and long spans. As standard, it was to serve as a railway bridge with a span of up to 60.0 m and as a road bridge with a span of 84.0 m. The task of the study published in this paper is to approach the possibilities of deploying the ŽM 60 bridge at present in compliance with the requirements arising from currently applicable standards and regulations.

LANGUAGE IN MODERN LINGUISTICS

Language, the foundation of human communication, has long fascinated scholars. Modern linguistics, with its diverse methodologies and theoretical frameworks, offers a vibrant and ever-evolving lens through which to examine this complex phenomenon. This article delves into the key areas of inquiry within modern linguistics, highlighting the intricate interplay between language structure, function, and social context.

НОВІТНІ ПРОТОКОЛИ БЕЗДРОТОВИХ МЕРЕЖ: ПЕРЕВАГИ ТА НЕДОЛІКИ

The authors examines the issues of Wireless Networks, which are the foundation of modern communication, providing Internet connectivity for millions of devices worldwide. With the advancement of technology, new protocols are emerging that promise improvements in speed, reliability, and security. This article will review the latest wireless network protocols, such as Wi-Fi 6 (802.11ax), Wi-Fi 6E, Wi-Fi 7 (802.11be), and 5G, as well as their advantages and disadvantages. The growing number of connected devices requires networking solutions that can easily scale without sacrificing performance. In a world where there are many different devices and systems, the latest protocols must ensure interoperability between different manufacturers and technologies. Therefore, the problems of the latest wireless network protocols are closely related to important scientific and practical tasks facing modern society. Studying the advantages and disadvantages of these protocols is critical to ensure the efficient functioning of wireless communications in the future. The influence of the implementation of the latest protocols on the practical use of wireless networks in various fields, including communications, medicine, and industry, will be evaluated. An analysis of the competitiveness of the latest protocols in comparison with previous versions of the protocols and other competing technologies was also carried out, and recommendations were formulated for organizations and enterprises regarding the selection and implementation of the latest wireless network protocols, taking into account their advantages and disadvantages. Given an example with Wi-Fi 6, I used the Scapy library to create and send frames. This example demonstrates how you can configure frames for data transmission using Wi-Fi 6 technology. Using RadioTap and Dot11 allows you to configure the necessary parameters for wireless transmission.

Communicating Unnamable Risks: Aligning Open World Situation Models Using Strategies from Creative Writing

How can a machine warn its human collaborator about an unexpected risk if the machine does not possess the explicit language required to name it? This research transfers techniques from creative writing into a conversational format that could enable a machine to convey a novel, open-world threat. Professional writers specialize in communicating unexpected conditions with inadequate language, using overlapping contextual and analogical inferences to adjust a reader’s situation model. This paper explores how a similar approach could be used in conversation by a machine to adapt its human collaborator’s situation model to include unexpected information. This method is necessarily bi-directional, as the process of refining unexpected meaning requires each side to check in with each other and incrementally adjust. A proposed method and example is presented, set five years hence, to envisage a new kind of capability in human-machine interaction. A near-term goal is to develop foundations for autonomous communication that can adapt across heterogeneous contexts, especially when a trusted outcome is critical. A larger goal is to make visible the level of communication above explicit communication, where language is collaboratively adapted.

Research on design strategy of public space service of commercial complex based on internet of things

The purpose of this study is to explore the design strategy of public space service of commercial complex based on the Internet of Things. By constructing a three-tier model of environmental energy consumption monitoring and management system for commercial complex, the application of network sensor technology is analyzed, and a data access interface based on Windows Communication Foundation (WCF) service is designed to realize batch hosting of WCF services and reduce the complexity of large-scale publishing services. In addition, this paper proposes a clustering method based on probabilistic topics (PTCM), which divides the service search space into probabilistic topics and effectively narrows the service search scope. The simulation results show that the algorithm shortens the shortest distance between mobile nodes and the average network distance, and improves the perceived service quality of the Internet of Things. This study not only provides new ideas and methods for the design of public space services in commercial complexes, but also provides useful reference for the application and promotion of Internet of Things technology in the field of public services.

Cross-cultural encounters of Italian travellers in the Malay world; A perspective on the languages spoken by the local populations

This paper describes the encounters that Italian travellers, explorers, and traders had with the peoples of the Malay world at the turn of the century. In particular, it focuses on the linguistic descriptions and observations made by Italian explorers of the languages spoken in the places they visited and included in their travel writings. In addition to the pioneering work of Pigafetta, the Italian scribe who followed Magellan on his voyage around the world and produced the first “Italian-Malay vocabulary” in 1521, other linguistic descriptions and observations were made by Giovanni Gaggino, a merchant who compiled an Italian-Malay dictionary in Singapore, Odoardo Beccari, a naturalist who offered reflections on the Malay spoken in Borneo, and Celso Cesare Moreno, a ship captain and adventurer. Elio Modigliani, in his travels to Nias, Enggano, Mentawai, and the Batak country, provided detailed information on the local languages spoken in these islands in North and West Sumatra, while Giovanni Battista Cerruti, an explorer and ship captain who visited Singapore, Batavia, and the Malay Peninsula, commented on the languages, as did Emilio Cerruti, who travelled to the Moluccas and Papua. This paper focuses on how these languages were described and perceived by these nineteenth-century Italian travellers. It concludes that these explorers were all united by a common necessity, namely the importance of speaking local languages in order to be able to interact with the people they met on their travels. Malay, in particular, was always viewed positively as an international language, a powerful tool for communicating, learning, and interacting with others, and a beautiful language. Conversely, the other minority languages were seen as poor and simple, but still a powerful tool to overcome barriers and lay the foundations for intercultural communication.

Online dynamic multi-user computation offloading and resource allocation for HAP-assisted MEC: an energy efficient approach

Nowadays, the paradigm of mobile computing is evolving from a centralized cloud model towards Mobile Edge Computing (MEC). In regions without ground communication infrastructure, incorporating aerial edge computing nodes into network emerges as an efficient approach to deliver Artificial Intelligence (AI) services to Ground Devices (GDs). The computation offloading and resource allocation problem within a HAP-assisted MEC system is investigated in this paper. Our goal is to minimize the energy consumption. Considering the randomness and dynamism of the task arrival of GDs and the quality of wireless communication, stochastic optimization techniques are utilized to transform the long-term dynamic optimization problem into a deterministic optimization problem. Subsequently, the problem is further decomposed into three sub-problems which can be solved in parallel. An online Energy Efficient Dynamic Offloading (EEDO) algorithm is proposed to address these problems. Then, we conduct the theoretical performance analysis for EEDO. Finally, we carry out parameter analysis and comparative experiments, demonstrating that the EEDO algorithm can effectively reduce system energy consumption while maintaining the stability of the system.

A Study on the Maximum Reliability of Multi-UAV Cooperation Relay Systems.

This paper studies the maximum reliability of multi-hop relay UAVs, in which UAVs provide wireless services for remote users as a coded cooperative relay without an end-to-end direct communication link. In this paper, the analytical expressions of the total power loss and total bit error rate are derived as reliability measures. First, based on the environmental statistical parameters, a LOS probability model is proposed. Then, the problem of minimizing the bit error rate of static and mobile UAVs is studied. The goal is to minimize the total bit error rate by jointly optimizing the height, elevation, power and path loss and introducing the maximum allowable path loss constraints, transmission power allocation constraints, and UAV height and elevation constraints. At the same time, the total path loss is minimized to achieve maximum ground communication coverage. However, the formulated joint optimization problem is nonconvex and generally difficult to solve. Therefore, we decomposed the problem into two subproblems and proposed an effective joint optimization iteration algorithm. Finally, the simulation results are given, and the analysis shows that the optimal height of different reliability measures is slightly different; thus, using the mobility of UAVs can improve the reliability of communication performance.

The Effectiveness of Scrabble Games to Promote Vocabulary Achievement of Migrant Workers’ Children in Malaysia

Vocabulary skill is crucial for every English as foreign language (EFL) learners as it forms the foundation for effective communication, comprehension, and overall language proficiency. However, Indonesian migrant workers’ children who attend school at PPWNI Klang that has only two teachers who are not experts in the field of English, resulting in a lack of enthusiasm among students to learn the language. The study aimed to examine whether the use of Scrabble games was effective in increasing students' vocabulary achievement or not. The research design was a pre-experimental research design, with one group pretest-posttest used by the researchers. The sample of the study was 21 students of grade 9 SMP PPWNI Klang Malaysia, selected using purposive sampling. The results of the pretest and posttest data were analyzed using the paired sample t-test through the SPSS software. The findings of the study showed that Sig. (2-tailed) of 0.000 < 0.05. This means that there is a significant difference and effectiveness in learning outcomes after using the scrabble games method in learning English vocabulary. As the conclusion, a scrabble game is an effective strategy for teaching vocabulary especially to students facing various challenges, such as limited teacher resources and an unsupportive learning environment, they can be comfortable and motivated to continue learning due to the enjoyable game-based learning experience.

Primitive way country come look inside

Abstract A disabled poet with Rett syndrome and a disabled performing artist with type 1 diabetes document their 12-month artistic collaboration to illuminate ground-time: the nonverbal, expressive dynamics of embodied communication. Five “communication moments” between the artists (documented in writing, video, and photo) are described. Potentials and limitations of augmentative and alternative communication (AAC) technologies, specifically Tobii Dynavox eye-tracking technology and Communicator 5, are discussed. Additionally, the authors question the clinical diagnostic category of “intellectual disability” on the grounds of disability justice, decolonial science, and philosophy. Communication-assistive technology platform developers are challenged to consider relational embodiment as the foundation of communication in design decisions regarding platform function. Technologies should facilitate improvisation and nonlinear expression—verbal and nonverbal— while maintaining freedom of nondisclosure. The right to opacity in communication is also discussed.

QoE‐driven multi‐UAV deployment scheme for emergency communication networks

AbstractWhen ground communication infrastructure within a region cannot be used for some reason, deploying unmanned aerial vehicle (UAV)‐mounted base stations is undoubtedly the most effective way to provide communication services. This paper investigates the problem of joint deployment and power allocation of multiple UAVs, where ground terminals (GTs) seek to maximize quality of experience (QoE). In the mixed line‐of‐sight and non‐line‐of‐sight environment, UAVs need to change position in order to collect channel information until deployment problem is solved. Moreover, only neighboring UAVs communicate with each other, which makes the problem more difficult to solve. In order to solve this problem, game theory is used to model this problem and design a distributed learning algorithm to maximize the QoE of all GTs in the entire system. Simulation results validate the effectiveness of the proposed learning algorithm in improving the QoE fairness and achieving the rapid deployment of UAVs.

OVERSIZED ROAD TRANSPORT - PARTICULARITIES, REALIZATION CONDITIONS, PROBLEMS AND DEVELOPMENT PERSPECTIVES

Transport is in continuous evolution, regardless of the activity sector. Road transport faces various obstacles, and their management is a crucial part of planning and executing bulk transport operations. One of the main obstacles is the low height of bridges or power lines along the planned route. To avoid collisions with these obstacles, detailed studies of the route are carried out, identifying potential conflict points in advance. Preventive measures such as temporarily raising power lines or temporarily changing the height of bridges can be implemented to ensure the smooth passage of oversized cargo. Ground communication routes with a curved axis represent another limiting factor in oversized transport. Solutions include planning routes to minimize the number of bends or using special trailers with directional axles. These trailers allow for easier cornering and ensure that the transport can cross terrain with difficult geographical features. The necessary authorizations also represent a major obstacle. Oversized transport often involves dimensions and weights that exceed the usual limits, which is why it is mandatory to obtain authorizations issued by competent public authorities. But this stage, by way of consequence, determines the legality and admissibility of carrying out transport operations. To manage obstacles in oversized transport, a proactive approach is essential, with detailed route analyses, the implementation of appropriate preventive measures, and compliance with applicable regulations. These solutions contribute to the efficiency and safety of oversized road transport, ensuring harmonious integration in the context of the existing infrastructure.

Research on the path to enhance the cultural communication literacy of Thai international Chinese language teachers

With the rapid development of global integration, new requirements have been put forward for the content of communication and cooperation among countries. Since the 1990s, China's comprehensive strength has continued to develop rapidly and has become an indispensable and important country in the global development process. With China's increasing international status and close cooperation with countries around the world in multiple fields, each country has a strong demand for learning Chinese, which has prompted China's Chinese language and culture to enter a new stage of high-quality development. Language is a bridge of communication that can promote the integration and development of international culture, industry, and other aspects. International Chinese language teachers play a particularly important role in the dissemination of Chinese language and literature. Therefore, it is necessary to develop a standardized framework and model for cultivating the ability elements of international Chinese language teachers based on guidance and goals, in order to promote sustainable development. This study uses literature review, interview methods, and mathematical statistics to investigate some international Chinese language teachers who have traveled from China to Thailand. The PDCA cycle theory is used to establish a development path centered on "current situation analysis, innovation path, path evaluation, and continuous improvement", exploring the difficulties and difficulties in improving the cultural communication literacy ability of Thai international Chinese language teachers, Targeted optimization and development paths should be proposed: (1) Reasonable goals and development ideas for cultivating the ability elements of international Chinese language teachers should be formulated based on the actual situation of Thai Chinese language learning, exploring deep internal motivation and logical relationships, and improving the framework for cultivating ability elements based on the elements of communication. (2) In the specific implementation process, specific indicators for cultivating ability elements should be clearly defined to strengthen standardization. Targeted training should be conducted based on relevant indicators. (3) Targeted ability element training standards should be developed for Chinese language teachers based on the actual environment, needs, and theoretical foundation of international communication in Thai Chinese language learning. Fourthly, explore diversified cultural communication methods and development path choices, improve the comprehensive ability of Thai international Chinese language around the elements of global communication, and continuously optimize the curriculum system and teaching content. (4) We should improve the evaluation and feedback system, establish clear management systems and development plans for each stage, and promote excellent culture and concepts in a healthy manner. In the specific implementation process, being good at identifying and proposing problems, and combining practical experience to fully solve problems, can help promote deep development.

Strategi Manajemen Komunikasi Media Online PT. Warta Global Republik Dalam Mengatasi Persaingan Antarmedia Online

The rapid growth of the internet has resulted in the widespread existence of online media in Indonesia. As a result, competition between these online media platforms is increasing. With so much competition between online media, this research was conducted to find out how the communication management strategy carried out by PT Warta Global Republik as a new online media company to overcome competition between other online media. The method applied in this research uses a qualitative approach by analyzing POAC communication management theory (Planning, Organizing, Actuating, and Controlling). The data collection techniques implemented involved documentation studies, literature studies, observation, and in-depth interviews. The results of this study show that the management strategy implemented by PT Warta Global Republik has a good and effective communication foundation. Starting from the planning stage, Warta Global Republik takes steps to evaluate previous performance results, then maintains what is good and then replaces what is ineffective. At the organizing stage Warta Global uses a communication approach with the Journalist Organization, then at the actuating stage Warta Global uses effective communication to move the team, finally at the controlling stage the Chief Editor of Warta Global as the Warta Network oversees all articles to comply with company regulations. From the analysis of POAC management theory, it can be seen that the results of research on Warta Global Republik's management strategy say that Planning, Organizing, Actuating and Controlling are important points in the communication management of a company. In addition, the editor-in-chief of Warta Global Republik also holds full responsibility for competing with competing online media

Prophetic Communication in Historical and Axiological Review

Prophetic communication needs to be reviewed from a historical and axiological perspective. Understanding from a historical point of view means trying to see the Prophet Muhammad as the perpetrator of the history of prophetic communication, reviewing from an axiological point of view to see how far the benefits of this prophetic communication are to human life both personally and communally. Seeing the integration of ethical and aesthetic values that must exist in prophetic communication is the next important part of unraveling prophetic communication from an axiological perspective. The research method used in this research is qualitative with a literature study, analyzing literary references and providing a critical review of prophetic communication in the historical and axiological review of these references. Suppose research on prophetic communication tends to be in the form of implementation. In that case, this research reviews prophetic communication from a historical perspective, which is the initial foundation of prophetic communication, and axiologically to see its application in individual and social aspects more deeply. The ultimate goal resulting from the implementation of prophetic communication is, of course, as we have seen to this day, namely, a change in civilization, specifically the transition from the Jahiliyah era or before the presence of the Prophet SAW to modern life today. The results of this study indicate that prophetic communication is closely related historically and axiologically.

A Policy Gradient Algorithm for the Risk-Sensitive Exponential Cost MDP

We study the risk-sensitive exponential cost Markov decision process (MDP) formulation and develop a trajectory-based gradient algorithm to find the stationary point of the cost associated with a set of parameterized policies. We derive a formula that can be used to compute the policy gradient from (state, action, cost) information collected from sample paths of the MDP for each fixed parameterized policy. Unlike the traditional average cost problem, standard stochastic approximation theory cannot be used to exploit this formula. To address the issue, we introduce a truncated and smooth version of the risk-sensitive cost and show that this new cost criterion can be used to approximate the risk-sensitive cost and its gradient uniformly under some mild assumptions. We then develop a trajectory-based gradient algorithm to minimize the smooth truncated estimation of the risk-sensitive cost and derive conditions under which a sequence of truncations can be used to solve the original, untruncated cost problem. Funding: This work was supported by the Office of Naval Research Global [Grant N0001419-1-2566], the Division of Computer and Network Systems [Grant 21-06801], the Army Research Office [Grant W911NF-19-1-0379], and the Division of Computing and Communication Foundations [Grants 17-04970 and 19-34986].

Getting the message across; a realist study of the role of communication and information exchange processes in delivering stroke Early Supported Discharge services in England.

Stroke early supported discharge (ESD) involves the co-ordinated transfer of care from hospital to home. The quality of communication processes between professionals delivering ESD and external stakeholders may have a role to play in streamlining this process. We explored how communication and information exchange were achieved and influenced the hospital-to-home transition and the delivery quality of ESD, from healthcare professionals' perspectives. Six ESD case study sites in England were purposively selected. Under a realist approach, we conducted interviews and focus groups with 117 staff members, including a cross-section of the multidisciplinary team, service managers and commissioners. Great variation was observed between services in the type of communication processes they employed and how organised these efforts were. Effective communication between ESD team members and external stakeholders was identified as a key mechanism driving the development of collaborative and trusting relationships and promoting coordinated care transitions. Cross-boundary working arrangements with inpatient services helped clarify the role and remit of ESD, contributing to timely hospital discharge and response from ESD teams. Staff perceived honest and individualised information provision as key to effectively prepare stroke survivors and families for care transitions and promote rehabilitation engagement. In designing and implementing ESD, early stakeholder involvement ensured the services' fit in the local pathway and laid the foundations for communication and partnership working going forward. Findings highlighted the interdependency between services delivering ESD and local stroke care pathways. Maintaining good communication and engagement with key stakeholders may help achieve a streamlined hospital discharge process and timely delivery of ESD. ESD services should actively manage communication processes with external partners. A shared cross-service communication strategy to guide the provision of information along to continuum of stroke care is required. Findings may inform efforts towards the delivery of better coordinated stroke care pathways.