The LTE network

Continued part 1, part 2 of ebook "Introduction to Mobile network engineering: GSM, 3G-WCDMA, LTE and the road to 5G" provides readers with contents including: high-speed packet data access (HSPA); 4G-long term evolution (LTE) system; LTE-A; further development for the fifth generation; annex - base-station site solutions;...

208p dangsovu 20-10-2023 6 6   Download

Part 1 of ebook "Introduction to Mobile network engineering: GSM, 3G-WCDMA, LTE and the road to 5G" provides readers with contents including: introduction; types of mobile network by multiple-access scheme; cellular system; radio propagation; mobile radio channel; radio network planning; global system mobile, GSM, 2G; EGPRS, GPRS/EDGE; third generation network (3G), UMTS;...

193p dangsovu 20-10-2023 6 5   Download

In this thesis, the limitations of using existing LTE congestion mitigation mechanisms such as Discard Timer and RED have been explored. A different mechanism to analyse the effects of using control theory for congestion mitigation has been developed. Finally, congestion mitigation in LTE networks has been addresses using radio resource allocation techniques with non-cooperative game theory being an underlying mathematical framework.

118p runthenight04 02-02-2023 2 1   Download

In this paper, we introduce the design of an LTE-R train control communication with a duplicated network structure. We propose two different network structures with fully-overlapping cell arrangement and with partly overlapping cell arrangement, respectively for the system and discuss major problems, including handover and inter-cell interference.

5p chauchaungayxua11 23-03-2021 8 4   Download

The results measured when doing a drive test are RSRP, SNR, and throughput parameters. The results of the RSRP parameter get 95% of the total sample RSRP values -100 dBm to 0 dBm. The SNR parameter gets 94% of the total sample which has a value of 0 dB to 25 dB.

6p lucastanguyen 28-05-2020 5 0   Download

The Wifi network with an average of -15 dBm. For LTE network throughput it has an average max. ping by 50.9 ms and min. ping is 864.5 ms, while WiFi networks have max average. ping by 24.3 ms and min. ping of 144.5 ms. From the results of these data show that the G5 Building has a good WiFi network and is superior to the LTE network.

12p lucastanguyen 28-05-2020 12 0   Download

The paper also provides a feature comparison with the multi-antenna techniques for 3GGP´s LTE/LTE-Advanced for cellular networks. Finally, physical layer simulation results calibrated within the DVB-NGH standardization process are provided to illustrate the gain of MIMO for the next generation of mobile TV broadcasting.

19p son248 24-03-2020 20 1   Download

The 5G wireless communication system is a new generation mobile communication system beyond 2020. 5GNow is still in the exploration stage. There are some shortcomings in LTE and LTE-A, such as strict synchronism, latency in crowded areas, energy consumption, and challenging in IoT, etc.

6p vivalletta2711 11-01-2020 39 0   Download

The interference is the most important problem in LTE or LTE-Advanced networks. In this paper, the interference was investigated in terms of the downlink signal to interference and noise ratio (SINR). In order to compare the different frequency reuse methods that were developed to enhance the SINR, it would be helpful to have a generalized expression to study the performance of the different methods. Therefore, this paper introduces general expressions for the SINR in homogeneous and in heterogeneous networks.

7p kequaidan1 16-11-2019 15 0   Download

This paper investigates the problem of inter-cell interference (ICI) in Long Term Evolution (LTE) mobile systems, which is one of the main problems that causes loss of packets between the base station and the mobile station. Recently, different frequency reuse methods, such as soft and fractional frequency reuse, have been introduced in order to mitigate this type of interference. In this paper, minimizing the packet loss between the base station and the mobile station is the main concern.

7p trinhthamhodang1 16-11-2019 42 3   Download

In this paper, we propose a solution for Long Term Evolution (LTE) mobile network based on the concept of NDN. By OPNET Modeler simulation, we carry out the evaluation in realistic mobile network with a huge number of mobility LTE mobile stations access to a single server, where content names and content sizes are obtained from real trace of Internet traffic. The obtained results show that Evolved Packet Core (EPC) caching scheme can helps to further increases the quality of service as well as offloads server traffic significantly.

11p cumeo3000 01-08-2018 29 0   Download

In NDN, popular contents are cached at routers for a certain time, and the previously queried one can be reused for multiple times to save bandwidth. In this paper, we propose a solution for Long Term Evolution (LTE) mobile network based on the concept of NDN. By OPNET Modeler simulation, we carry out the evaluation in realistic mobile network with a huge number of mobility LTE mobile stations access to a single server, where content names and content sizes are obtained from real trace of Internet traffic.

11p cumeo3000 01-08-2018 26 0   Download

3GPP đã tiến thêm một bước trên con đường đi đến mang toàn IP khi chuẩn hóa EPS ở phiên bản 8.LTE tạo ra môi trường di động nhằm thỏa mãn nhu cầu ngày càng cao của khách hàng như xem phim, chơi game, tham gia các mạng xã hội và các dịch vụ đa phương tiện khác. Ở trong không gian hẹp, các trạm phát BTS bị giới hạn về chất lượng dịch vụ, tuy nhiên LTE Femtocell có thể giải quyết được vấn đề này Femotocell thường được triển khai trong nhà, khu vực văn phòng, tuy thế nó vẫn có thể sử dụng cho các hotspot ngoài trời.

3p uocvongxua10 18-09-2015 67 4   Download

 outline of lecture 1  introduction  about the course “mobile & wireless networking”  history  current wireless technologies  important trends  wireless transmission (1 2)  frequencies  signals  antennas  signal propagation  multiplexing

39p cuonglanqaz 05-05-2015 54 7   Download

During the past years, there has been a quickly rising interest in radio access technologies for providing mobile as well as nomadic and fixed services for voice, video, and data. The difference in design, implementation, and use between telecom and datacom technologies is also getting more blurred.

651p nguyenan122 09-10-2013 67 17   Download

Mobile network operators will meet many challenges in the coming years. It is expected that the number of people connected, wireline and wireless, will reach five billion by 2015. At the same time, people use more wireless services and they expect similar user experience to what they can now get from fixed networks. Because of that we will see a hundred-fold increase in network traffic in the near future. At the same time markets are saturating and the revenue per bit is dropping.

0p namde04 02-05-2013 75 11   Download

.LTE for UMTS – OFDMA and SC-FDMA Based Radio Access LTE for UMTS: OFDMA and SC-FDMA Based Radio Access Edited by Harri Holma and Antti Toskala © 2009 John Wiley & Sons, Ltd. ISBN: 978-0-470-99401-6 .LTE for UMTS – Edited by OFDMA and SC-FDMA Based Radio Access Harri Holma and Antti Toskala both of Nokia Siemens Networks, Finland John Wiley & Sons, Ltd .This edition first published 2009 © 2009 John Wiley & Sons Ltd.

450p hoagiay_123 22-04-2013 81 30   Download

In the nineteenth century, scientists, mathematician, engineers and innovators started investigating electromagnetism. The theory that underpins wireless communications was formed by Maxwell. Early demonstrations took place by Hertz, Tesla and others. Marconi demonstrated the first wireless transmission. Since then, the range of applications has expanded at an immense rate, together with the underpinning technology. The rate of development has been incredible and today the level of technical and commercial maturity is very high.

546p namde01 10-04-2013 87 22   Download

This book is one of the most comprehensive and up-to-date books written on Energy Efficiency. The readers will learn about different technologies for energy efficiency policies and programs to reduce the amount of energy. The book provides some studies and specific sets of policies and programs that are implemented in order to maximize the potential for energy efficiency improvement. It contains unique insights from scientists with academic and industrial expertise in the field of energy efficiency collected in this multi-disciplinary forum....

406p cucdai_1 19-10-2012 88 16   Download

Many exciting impacts on our daily life are shortly anticipated due to recent advances in wireless communication networks that enable real-time multimedia services to be provided via mobile broadband Internet on a wide variety of terminal devices. The trend is mainly driven by the evolution of wireless networks and advanced wireless information and communication technology (ICT).

0p ktcn_1 10-07-2012 67 5   Download