Wide Network Coverage Research Articles

Bridging the Gap to 6G: Leveraging the Synergy of Standardization and Adaptability

The field of wireless network and communication technology is evolving from generation to generation from 1G to 6G as of now till expected to be deployed and used by 2030. It is to succeed in 5G and bring significant improvements in terms of connectivity, speed, and size in next-generation communication technology. 6G aims to deal with the rising need for more rapid information speed, low latency, and wider network coverage. This intelligent communication is proposed to meet these demands and enable new services and applications. This review paper highlights the key enablers and challenges involved in implementing intelligent communication beyond 5G. The paper identifies the research gaps for incorporating beyond 5G communication networks and outlines the possible 6G key objectives from a flexibility standpoint. It reviews infrastructure deployment, network densification, spectrum capacity and network energy efficiency in predecessors to 6G. This paper emphasizes the need for standardization and adaptation of research areas to revolutionize 6G wireless communication, focusing on areas like, ultra massive MIMO, Terahertz Communications, Cell-Free Communications, Intelligent Reflecting Surface, Visible Light Communication, Internet of Things, Big Data management, Artificial Intelligence, and network connectivity techniques.

The Impact of Cyberviolence on Individuals

With the wider network coverage and higher penetration rate, many social problems emerge, such as cyberbullying. This paper explores how cyberbullying influences the short-term and long-term development of individuals through domestic and foreign literature reviews as well as interviews. The most apparent impact is that teenagers who have suffered from cyberbullying are prone to depression, sleep deprivation, and bad behaviors. For adults, in addition to negative emotions, cyberbullying also harms their jobs and future opportunities. Meanwhile, for adults and minors, cyberbullying has an impact on their interpersonal relationships and future development. To better solve cyberbullying and protect potential victims, this paper argues that the government is responsible for subdividing the degree and types of cyberbullying from the legal perspective, and then taking different punishments. Schools can implement medienbuildng, from which teenagers can foster their media literacy, acquire media knowledge, and master the skills of media. Besides, media content can be identified to judge the consequences of media behavior and control media behavior. All major platforms are obliged to recover the comments and reports of cyberbullying in time, and popularize the basic knowledge of network usage for every user before registering media accounts, such as in the form of videos or questions and answers.

Blockchain technology empowers telecom network operation

Telecom operators are deploying the fifth generation (5G) networks around the world which promises high information transmission rate, wide network coverage, low communication delay, and easy access to a large number of devices. However, during the construction and operation of 5G, telecom operators face many challenges, such as insufficient frequency resources, low efficiency of network management, information opacity, risks of data interoperability, and network privacy vulnerabilities. As 5G is generally deployed in heterogeneous networks with massive ubiquitous devices, it is quite necessary to provide secure and decentralized solutions. Blockchain is a distributed system maintained by multiple parties with inherit features including decentralization, traceability and tamperproof. These features collectively contribute to a new application ecosystem where transactions are secure and trustworthy. Therefore, blockchain is expected to integrate with 5G networks to build safer and more reliable mobile network infrastructures. This paper firstly discusses the merits of blockchain technology and the benefits of integrating it with 5G networks. Then a variety of applications of blockchain technology in telecom network operation are reviewed, including spectrum sharing, international roaming settlement, network operation management, number selection management and supply chain management. In the end, we show our recently advance in integrating blockchain in 5G by introducing a multi framework based blockchain service network architecture deployed in real environment.

Optimal Resource Allocation Method for Device-to-Device Communication in 5G Networks

With the rapid development of the next-generation mobile network, the number of terminal devices and applications is growing explosively. Therefore, how to obtain a higher data rate, wider network coverage and higher resource utilization in the limited spectrum resources has become the common research goal of scholars. Device-to-Device (D2D) communication technology and other frontier communication technologies have emerged. Device-to-Device communication technology is the technology that devices in proximity can communicate directly in cellular networks. It has become one of the key technologies of the fifth-generation mobile communications system(5G). D2D communication technology which is introduced into cellular networks can effectively improve spectrum utilization, enhance network coverage, reduce transmission delay and improve system throughput, but it would also bring complicated and various interferences due to reusing cellular resources at the same time. So resource management is one of the most challenging and importing issues to give full play to the advantages of D2D communication. Optimal resource allocation is an important factor that needs to be addressed in D2D communication. Therefore, this paper proposes an optimization method based on the game-matching concept. The main idea is to model the optimization problem of the quality-of-experience based on user fairness and solve it through game-matching theory. Simulation results show that the proposed algorithm effectively improved the resource allocation and utilization as compared with existing algorithms.

Impact of Existent Culture on the Performance of Mobile Telecommunication Companies in Nigeria.

The study identified the culture that existed in mobile telecommunication companies in Nigeria. The population for the study comprised all employees of eight telecommunication companies in Southwestern Nigeria namely Mtn, Globacom, Etisalat, Airtel, Visafone, Odua Network, Starcomms and Multilinks. The study used of two-stage sampling technique. At the first stage, purposive sampling technique was used to select three companies namely Mtn, Glo, and Etisalat because of their wider network coverage. Also, purposive sampling technique was used to select Lagos, Oyo and Osun States in Southwestern Nigeria where major offices of these selected companies were located. At the second stage, convenience sampling was used to select 90 employees from Mtn, 80 employees from Globacom and 30 employees from Etisalat and this was stratified into three categories (senior, middle and junior). Primary data and Secondary data were used in the study. The responses to the questionnaires were analyzed using Statistical Package for Social Sciences (SPSS), which generated the frequency distribution, means, Standard deviation and Durbin Watson statistics among other responses. The hypothesis of this research was tested at 0.05 level of significance using Durbin Watson Statistics hinged on factors influencing the culture of mobile telecommunication companies. The study found out that teamwork spirit, effective communication, creative synergy, viable business strategy; among others will help in improving performance of mobile telecommunication companies. The study also found out that there are some factors which could influence the existence culture of mobile telecommunication companies in Nigeria. These include National culture; Government policies; Industry norms; Macroeconomics; and their Legal system. This study however recommended that managers should endeavour to strengthen the existent culture in their companies and employees should ensure conformity with its usage. Keywords: Impact, Organization, Existent Culture, Business Performance, Mobile Telecommunication Companies. DOI : 10.7176/EJBM/11-5-10

WiFi Temporal Coverage: Analysis of Socio-Economics Influences in Malaysia

According to Internet Survey 2017, it was found that 89.4 percent of Internet users in Malaysia used a smartphone as a medium to access the internet. The proliferation of mobile devices and bandwidth hungry application, has resulted in mobile network provider (MNO) struggles to keep up with the ever-increasing demand for higher network capacity and wider network coverage. WiFi offloading seems the most viable solution due to the abundance and readily available infrastructure. Diverted traffic to the WiFi network may possibly reduce cellular network traffic, hence cellular network provider may be able to accommodate traffic growth at a lower cost. By analysing and understanding the user’s offloading behaviour may provide guidance in price and cost restructuring strategies or in network planning. This paper investigates temporal coverage of mobile user’s WiFi utilization and socio-economics influences through an extensive measurement study. The measurement study is carried out for 18 days and collected real data traces of user WiFi utilization on Android smartphone. The observation analysed user’s WiFi temporal coverage where participants are categorized into two different socio economics group. The finding reveals low WiFi temporal coverage for both groups of smartphones users. Group 1 spends more time using WiFi compared to Group 2, while both groups shows higher temporal coverage during active hour. Findings of this research may potentially serve as insights to the relevant stakeholder or regulatory body, as well as a barometer to carry out enhancement measures or any potential joint venture between cellular network provider and ISP.

Surveillance-Aware Uplink Scheduling for Cellular Networks

Most scheduling algorithms in the literature for cellular networks are concerned with throughput, fairness, or cost optimization. Recently, however, wireless surveillance in cellular networks has become increasingly important, and more and more institutions and companies have adopted commercial cellular surveillance cameras due to their low installation cost and the wide network coverage. In this paper, therefore, we first explore the resource allocation problem for a multi-camera surveillance system in cellular networks. We minimize the number of allocated resource blocks (RBs) while simultaneously ensuring the coverage requirement for the surveillance system in cellular networks. Specifically, we first describe our system model and then formulate the Camera Set Resource Allocation Problem (CSRAP). Next, we prove that the problem is NP-hard and inapproximable within ln n, where n is the number of surveillance targets. To solve the problem, we propose an approximation algorithm for the general case of CSRAP and then we find the optimal solutions of three deployments of cameras in the Manhattan Street Network to find the intrinsic characteristics of camera selections. The simulation results, based on two real surveillance maps and synthetic datasets, show that the number of allocated RBs can be effectively reduced compared to the existing approach for cellular networks.

Enhanced Service Discovery Model for Wireless Mesh Networks

Wireless mesh networks (WMNs) are the only cost-effective networks that support seamless connectivity, wide area network (WAN) coverage, and mobility features. However, the rapid increase in the number of users on these networks has brought an upsurge in competition for available resources and services. Consequently, factors such as link congestion, data collisions, link interferences, etc. are likely to occur during service discovery on these networks. This further degrades their quality of service (QoS). Therefore, the quick and timely discovery of these services becomes an essential parameter in optimizing the performance of service discovery on WMNs. In this paper, we present the design and implementation of an enhanced service discovery model that solves the performance bottleneck incurred by service discovery on WMNs. The proposed model integrates the particle swarm optimization (PSO) and ant colony optimization (ACO) algorithms to improve QoS. We use the PSO algorithm to assign different priorities to services on the network. On the other hand, we use the ACO algorithm to effectively establish the most cost-effective path whenever each transmitter has to be searched to identify whether it possesses the requested service(s). Furthermore, we design and implement the link congestion reduction (LCR) algorithm to define the number of service receivers to be granted access to services simultaneously. We simulate, test, and evaluate the proposed model in Network Simulator 2 (NS2), against ant colony-based multi constraints, QoS-aware service selection (QSS), and FLEXIble Mesh Service Discovery (FLEXI-MSD) models. The results show an average service discovery throughput of 80%, service availability of 96%, service discovery delay of 1.8 s, and success probability of service selection of 89%.

Perbandingan Perhitungan Trafik Jam Sibuk CDMA 2000 1x pada BTS Inner City dan BTS Outer City dengan Mempergunakan Metode ADPH, TCBH, FDMH dan FDMP

<p class="Abstract">Cellular communication system is a wireless communication system where the subscriber can move within a wide network coverage. Code Division Multiple Access (CDMA) is a multiuser access technology that is each user uses a unique code contained in the access channel in the system. Calculation and determination of peak hours can be done by several methods such as: Average Daily Peak Hour (ADPH), Time Consistent Busy Hour (TCBH), Fixed Daily Measurement Hour (FDMH), Fixed Daily Measurement Period (FDMP). The effectiveness of the channel should be determined by occupancy both at inner city territory and outer city territory location. Using design Erlang (Erl) for supply channel at Base Transceiver Station (BTS) that provided, BTS has a design Erlang of 369,83 Erl at inner city and it has a design Erlang of 241,8 Erl at outer city. Peak hour on the inner city occurred at 12:00 to 15:00, whereas the outer city of peak hour occurred at 18:00 to 21:00. Effectiveness value that determined by operator are : <20% = low occupancy (not effective), 21% to 69% = normal occupancy (effective), and > 70% = high occupancy (very effective). In this case occupancy values ​​obtained in each method is between 21% to 69% which means effective.</p>

Development of Global Geographical Coverage Area for Terrestrial Networks Internetworked with Leo Satellite Network

Network planning, analysis and design are an iterative process aimed at ensuring that a new network service meets the needs of subscribers and operators. During the initial start-up phase, coverage is the big issue and coverage in telecommunications systems is related to the service area where a bare minimum access in the wireless network is possible. In order to guarantee visibility of at least one satellite above a certain satellite elevation, more satellites are required in the constellation to provide Global network services. Hence, the aim of this paper is to develop wide area network coverage for sparsely distributed earth stations in the world. A hybrid geometrical topology model using spherical coordinate framework was devised to provide wide area network coverage for sparsely distributed earth stations in the world. This topology model ensures Global satellite continuous network coverage for terrestrial networks. A computation of path lengths between any two satellites put in place to provide network services to selected cities in the world was carried out. A consideration of a suitable routing decision mechanism, routing protocols and algorithms were considered in the work while the shortest paths as well as the alternate paths between located nodes were computed. It was observed that a particular satellite with the central angle of 27° can provide services into the diameter of the instantaneous coverage distance of 4081.3 Km which is typical of wide area network coverage. This implies that link-state database routing scheme can be applied, continuous global geographical coverage with minimum span, minimum traffic pattern and latency are guaranteed. Traffic handover rerouting strategies need further research. Also, traffic engineering resources such as channel capacity and bandwidth utilization schemes need to be investigated. Satellite ATM network architecture will benefit and needs further study.

Perbandingan Perhitungan Trafik Jam Sibuk CDMA 2000 1x pada BTS Inner City dan BTS Outer City dengan Mempergunakan Metode ADPH, TCBH, FDMH dan FDMP

Cellular communication system is a wireless communication system where the subscriber can move within a wide network coverage. Code Division Multiple Access (CDMA) is a multiuser access technology that is each user uses a unique code contained in the access channel in the system. Calculation and determination of peak hours can be done by several methods such as: Average Daily Peak Hour (ADPH), Time Consistent Busy Hour (TCBH), Fixed Daily Measurement Hour (FDMH), Fixed Daily Measurement Period (FDMP). The effectiveness of the channel should be determined by occupancy both at inner city territory and outer city territory location. Using design Erlang (Erl) for supply channel at Base Transceiver Station (BTS) that provided, BTS has a design Erlang of 369,83 Erl at inner city and it has a design Erlang of 241,8 Erl at outer city. Peak hour on the inner city occurred at 12:00 to 15:00, whereas the outer city of peak hour occurred at 18:00 to 21:00. Effectiveness value that determined by operator are : <20% = low occupancy (not effective), 21% to 69% = normal occupancy (effective), and > 70% = high occupancy (very effective). In this case occupancy values obtained in each method is between 21% to 69% which means effective

SOSPhone: a mobile application for emergency calls

The general adoption of mobile devices and its wide network coverage made it possible to make emergency calls virtually everywhere, even in the absence of a valid contact. However, there is still generally the need for audio connection. This restriction is a problem for deaf people, but also for the elderly and people without disabilities who face sudden situations where speech is hard to articulate. In this context, this paper presents SOSPhone, a prototype of a mobile application that was developed to enable users to make emergency calls using an iconographic touch interface running in a touchscreen mobile device. The prototype implements the client-side of the application and was demonstrated and evaluated by a large number of users, including people without any disability, emergency services' professionals and deaf people. This paper describes the SOSPhone prototype and presents the results of the interface evaluation process, which is important to validate the main client-side interaction and architectural principles in order to proceed with the integration with each specific national emergency services' platform.

The impact of general sales agents on the air cargo industry

A General Sales Agent (GSA) is an airline's outsourcing counter part that markets and manages cargo services. An empirical investigation is undertaken to ascertain whether GSAs contribute economically to the air cargo industry using three 'litmus test' indicators:1) contribution to the airline's sales and profitability by expanding o perating networks; 2) viability as a marketing option for emerging or struggling airlines to help cut operating costs to reduce prices; 3) cost-effective GSAs were found to establish an airline's market presence through wide network coverage and good local knowledge, leading to an expansion of airline's operating networks and generating greater sales revenue.

Location management for mobile commerce applications in wireless Internet environment

With recent advances in devices, middleware, applications and networking infrastructure, the wireless Internet is becoming a reality. We believe that some of the major drivers of the wireless Internet will be emerging mobile applications such as mobile commerce. Although many of these are futuristic, some applications including user-and location-specific mobile advertising, location-based services, and mobile financial services are beginning to be commercialized. Mobile commerce applications present several interesting and complex challenges including location management of products, services, devices, and people. Further, these applications have fairly diverse requirements from the underlying wireless infrastructure in terms of location accuracy, response time, multicast support, transaction frequency and duration, and dependability. Therefore, research is necessary to address these important and complex challenges. In this article, we present an integrated location management architecture to support the diverse location requirements of m-commerce applications. The proposed architecture is capable of supporting a range of location accuracies, wider network coverage, wireless multicast, and infrastructure dependability for m-commerce applications. The proposed architecture can also support several emerging mobile applications. Additionally, several interesting research problems and directions in location management for wireless Internet applications are presented and discussed.