4G Long Term Evolution Network Research Articles

Public safety network design for broadband wireless access

Public protection and disaster relief (PPDR) agencies rely on wireless communications to respond in the event of emergencies. Public safety networks (PSNs) provide the wireless network used by emergency services. PSN is used to support push-to-talk services with some data transmission by employing land mobile radios. However, PPDR agencies are increasingly relying on additional information such as videos that require higher bandwidths. Therefore, many countries are transitioning or integrating their public safety networks with advanced broadband wireless communication systems such as fourth-generation (4G) long-term evolution (LTE) and planning to evolve to fifth-generation (5G) new radio (NR) in the future. The paper investigates infrastructure sharing mechanisms and deployment strategies in the transition of PSNs to a 4G LTE network, including a roadmap for cost analysis. Additionally, the paper examines LTE-based PSN deployment scenarios in various countries and engages in a discussion of the advantages and disadvantages of different sharing mechanisms and coexistence schemes. Finally, the challenges within the Public Safety Broadband Network (PSBN) are addressed and potential future research directions in this domain are deliberated.

Performing Analysis of Quality of Service Parameters of 4G Long Term Evolution in Health Care System

Long Term Evolution (LTE) is a leading 4G wireless broadband technology developed by the Third Generation Partnership Project (3GPP) Release 8. LTE is expected to provide very fast, highly responsive and cost effective data services and appears itself to be the right technology at the right time. LTE is becoming an ultimate choice for 4G services around the world due to its higher data rates and lower latency objectives. E-Health services comprise a wide range of healthcare services delivered by utilizing information and communication technology. In order to help existing and emerging e-Health services over converged next generation network (NGN) architectures, there is a need for network QoS control mechanisms that meet the often stringent requirements of such services. The mobile Health (m-health) is currently uniting major academic research worldwide to achieve innovative arrangements in the areas of healthcare. However, there are several challenges and issues that need to be addressed. In this paper we have proposed m-health care system based on 4G LTE network communication instead of existing 3G communication system. We will be monitoring QoS parameters like Delay, Throughput, Jitter, Energy Efficiency and Packet Data Rate for comparing 3G and 4G LTE usage over health care applications. We will further experiment the parameters with graph based analysis.

Impact of Scheduling Algorithms for QoS Improvement in LTE Networks

Spectral efficiency and delay are important design metrics that should be taken into consideration while designing a LTE/LTE-A network. Various factors effect these metrics in various ways. In this paper we will be analyzing spectral efficiency vs number of users and delay vs number of users in a 4G LTE network. Additionally, we will be analyzing effect of different scheduling types on delay and throughput of the network. The scheduling types we compare are maximum throughput, proportional fair and round robin. We will conclude on a scheduling type that gives us the least delay and maximum throughput. In view of the Universal Mobile Telecommunications System (UMTS) Long Term Evolution (LTE) technology, this paper considers multiple input multiple output (MIMO) capacity enhancement.

A Comparative Study on 3D Data Performance in Mobile Web Browsers in 4G and 5G Environments

Since their emergence in 2007, smart phones have advanced up to the point that 5G mobile communication in 2019 started to be commercialized. Accordingly, now it is possible to share 3D modeling files and collaborate by means of a mobile web. As the recently commercialized 5G mobile communication network is so useful in sharing 3D modeling files and collaborating that even large-size geometry files can be transmitted at ultra high speed with ultra low transfer delay. We examines characteristics of major 3D file formats such as STL, OBJ, FBX, and glTF and compares the existing 4G LTE (Long Term Evolution) network with the 5G NR (New Radio) mobile communication network. The loading time and packets of each format were measured depending on the mobile web browser environments. We shows that in comparison with 4G LTE, the loading time of STL and OBJ file formats were reduced as much as 6.55 sec and 9.41 sec, respectively in the 5G NR and Chrome browsers. The glTF file format showed the most efficient performance in all of the 4G/5G mobile communication networks, Chrome, and Edge browsers. In the case of STL and OBJ, the traffic was relatively excessive in 5G NR and Edge browsers. The findings of this study are expected to be utilized to develop a 3D file format that reduces the loading time in a mobile web environment.

OPTIMASI JARINGAN 4G LTE (LONG TERM EVOLUTION) PADA KOTA BALIKPAPAN

Long Term Evolution (LTE) merupakan teknologi generasi ke empat (4G) yang dikembangkan oleh 3rd Generation Partnership Project (3GPP). LTE mampu memberikan kecepatan downlink sampai dengan 100 Mbps dan uplink 50 Mbps. Penelitian ini mempunyai tujuan untuk melakukan perancangan jaringan 4G LTE pada wilayah kota Balikpapan dengan target khusus untuk mengetahui kualitas perancangan jaringan 4G LTE di kota Balikpapan melalui parameter best signal level, nilai C/ (N+I), throughput, RSRP dan BLER dari perancangan yang telah dilakukan. Metode penelitian dilakukan melaui survey ke lokasi site-site e Node yag diperlukan untuk memperoleh gambaran langsung kodisi sekitar e Node B dilanjutkan proses plotting 126 site-site e Node B di wilayah kota Balikpapan kemudian yang dilanjutkan dengan proses simulasi perancangan jaringan menggunakan software Atoll. Dari hasil simulasi ini dapat diketahui kualitas perancangan jaringan 4G LTE kota Balikpapan dengan nilai-nilai parameter yang diinginkan seperti best signal level sebesar -69,72 dBm, nilai C / (N+I) sebesar 5,08. Untuk perfomansi throughput sebesar 11.8034 kbps, sedangkan nilai RSRP sebesar -115, 88 dBm serta nilai BLER sebesar 0,03 .

Performance Evaluation of Scheduling Algorithms for 4G (LTE)

Long Term Evolution (LTE) is designed to revolutionize mobile broadband technology with key considerations of higher data rate, improved power efficiency, low latency and better quality of service. This work analyzes the impact of resource scheduling algorithms on the performance of LTE (4G) and WCDMA (3G) networks. In this paper, a full illustration of LTE system is given together with different scheduling algorithms. Thereafter, 3G WCDMA and 4G LTE networks were simulated using Simulink simulator embedded in MATLAB and performance evaluations were carried out. The performance metrics used for the evaluations are average system throughput, packet delay, latency and allocation of fairness using Round Robin, Best CQI and Proportional fair Packet Scheduling Algorithms. The results of the evaluations on both networks were analysed. The results showed that 4G LTE network performs better than 3G WCDMA network in all the three scheduling algorithms used.

Performance Evaluation of a Deployed 4G LTE Network

In Ghana and many countries within Sub-Sahara Africa, Long Term Evolution (LTE) is being considered for use within the sectors of Governance, Energy distribution and transmission, Transport, Education and Health. Subscribers and Governments within the region have high expectations for these new networks and want to leverage the promised enhanced coverage and high data rates for development. Recent performance evaluations of deployed WiMAX networks in Ghana showed promising performance of a wireless broadband technology in supporting the capacity demands needed in the peculiar Sub-Saharan African terrain. The deployed WiMAX networks, however could not achieve the optimal quality of service required for providing a seamless wireless connectivity demands needed for emerging mobile applications. This paper evaluates the performance of some selected key network parameters of a newly deployed LTE network in the 2600 MHz band operating in the peculiar Sub-Saharan African terrain under varied MIMO Antenna Configurations. We adopted simulation and field measurement to aid us in our evaluation. Genex Unet has been used to simulate network coverage and throughput performance of 2X2, 4X4 and 8X8 MIMO configurations of the deployed networks. The average simulated throughput per sector of 4X4 MIMO configuration was seen to be better than the 2X2 configuration. However, the percentage coverage for users under the 2x2 MIMO simulation scenario was better than that of the adaptive 4x4 MIMO configuration with 2x2 MIMO achieving 60.41% of coverage area having throughput values between 1 - 40Mbps as against 55.87% achieved by the 4x4 MIMO configuration in the peculiar deployment terrain.

DSP for Mobile Wireless LTE System: A Review

Long term evolution (LTE) is the last step towards the 4G of radio technologies designed to increase the capacity and speed of cellular networks. With the appearing of 4G LTE networks, there has been increasing interests and special attention is paid to the performance and power characteristics as compared with 3G networks. This paper provides detailed information about mobile wireless MIMO-LTE system. It is also presents a brief explanation of the characteristics, performance and state of art techniques used within mobile wireless MIMO-LTE system. There are several types of commercial digital signal processing (DSP) chips available in marks which can be used with MIMO- LTE system. Therefore, this work will be focuses on the applications of commercial DSPs in MIMO-LTE system and taking into consideration types and characteristics where can enables efficient baseband processing for 3G,4G and MIMO-LTE wireless system equipment with its scalable, highperformance architecture.

Optimization of Power Consumption in 4G LTE Networks Using a Novel Barebones Self-adaptive Differential Evolution Algorithm

The power consumption of wireless access networks is an important issue. In this paper, the power consumption of Long Term Evolution (LTE) base stations is optimized. We consider the city of Ghent, Belgium with 75 possible LTE base station locations. We optimize the network towards two objectives: the coverage maximization and the power consumption minimization. We propose a new Barebones Self-adaptive Differential Evolution. The results of the proposed method indicate the advantages and applicability of our approach.

Interference Analysis Between Digital Terrestrial Television (DTT) and 4G LTE Mobile Networks in the Digital Dividend Bands

With the introduction of digital terrestrial television (DTT) and the analogue television switch-off, terrestrial broadcast spectrum in the UHF band is being released for mobile communications, in particular for fourth generation (4G) long term evolution (LTE) mobile services. This spectrum is known as digital dividend. An impending problem when deploying 4G LTE mobile networks in the digital dividend bands is that interferences may appear in the adjacent radio frequency channels used for DTT. In this paper, we analyze the adjacent coexistence of DTT and 4G LTE networks in the digital dividend bands at 700 MHz and 800 MHz. A generic framework is adopted such that results can be easily extrapolated to different scenarios and bands. Results are presented as a function of the guard band between technologies, for both LTE uplink and downlink adjacent to the DTT signals, and for fixed outdoor and portable indoor DTT reception. Also, the effect of using anti-LTE filters is studied.

4G LTE network access system and pricing model for IoT MVNOs: spreading smart tourism

The aim of this study is to facilitate market access by Internet of things (IoT) mobile virtual network operators (MVNOs) (`M2V' hereinafter) for the purpose of providing the IoT services required to implement more advanced smart tourism in the tourism sector, which is heavily influenced not only by the Internet but also by information and communications technology (ICT) in the era of fourth generation (4G) long term evolution (LTE) networks. The study produced the following results. It established a 4G LTE network-based technological access system, which is commercially offered all over the world, and suggested business models featuring diverse interworking between network and system through M2V access to 4G LTE, as well as the resulting wholesale price calculation model according to bandwidth. Based on the research model, both the Korean government and governments of other countries can be expected to further advance smart tourism in the future by implementing policy and institutional supports that aim to enable 4G LTE network-based M2V to realize a technological access system, and by inducing M2V to make inroads into the tourism industry based on diversified business models.

Impact of Acknowledgments on Application Performance in 4G LTE Networks

Fourth generation (4G) Long Term Evolution (LTE) is a new mobile phone network standard designed to provide both the capacity and Quality of Service (QoS) needed to support multimedia applications. Recent research in LTE has explored modifications to QoS setups, creating MAC layer schedulers and modifying the current QoS architecture. However, what has not been fully explored are the effects of LTE retransmission choices and capabilities on applications and quality of experience. This work examines the impact of LTE wireless acknowledgment modes and timer settings on Voice over IP (VoIP), file transfer and video streaming applications. Issues explored include interaction between application performance, network transport protocols, LTE acknowledgment mode, and wireless conditions. Network Simulator 3 simulations show that LTE retransmissions improve FTP throughput. With delay sensitive applications, such as VoIP and video, the benefits of LTE retransmissions are dependent on the loss rate and specific LTE settings. LTE providers should configure their networks to use retransmission policies appropriate for the type of application traffic.

Fast Recovery Approach to Improve TCP Congestion Problem in 4G LTE Network Using NS-3

The Long Term Evolution (LTE) of the UMTS Terrestrial Radio Access and Radio Access Network is another correspondence standard went for business arrangement in 2010. Objectives for LTE incorporate backing for enhanced framework limit and scope, high top information rates, low idleness, lessened working expenses, multi- recieving wire support, adaptable transfer speed operations and consistent mix with existing systems. The point of this proposal is to study the effects on the end-client and framework execution when clients with high bit rates TCP administrations are traveling through the system. These effects influence the decreased endclient or framework throughput, e.g., because of clogging in the vehicle system, prompting poor usage of the vehicle and radio assets accessible. To reach such a point, it has been important (1) to make another test system with the ns-3 and perform reenactment in diverse system settings and (2) define a quick recuperation approach ready to catch the essential flow of the genuine framework and to keep away from blockage circumstance. Conceivable answers for relieve the effects are researched by contrasting the recreations consequences of TCP execution in the radio and transport system and we perform Fast recovery in TCP Stream.