Dissertation > Excellent graduate degree dissertation topics show

3GPP LTE link adaptation technology and its application in collaboration communication

Author: YanQi
Tutor: HuBo
School: Fudan University
Course: Circuits and Systems
Keywords: LTE Advanced LTE Link adaptation techniques Hybrid ARQ Collaborative communication Relay Technology
CLC: TN929.5
Type: Master's thesis
Year: 2010
Downloads: 274
Quote: 0
Read: Download Dissertation

Abstract


The mobile communication into people's lives began increasingly profound impact on people's lifestyles. Today's mobile communication field is undergoing rapid development, the next generation of mobile communication systems are protocol to application. The continuous development of new wireless business lead to broadband mobile communication, diversity, and cellular communications, mobile broadcast TV, wireless broadband networks is accelerating the mutual penetration, the network continues to converge. So that the development of the situation, has great significance to the development of the next generation of mobile communications technology and research. Long Term Evolution (LTE) project is the 3GPP organization and strong investment 3G evolution project aims to build a next-generation mobile communications system platform, as the basis for development of 4G communication systems. Today, as 4G candidate for the advanced LTE (LTE-Advance) project has also been a concern of researchers, and continue to put forward new proposals, to achieve a more efficient future mobile communication systems. Collaborative communication, also known as relay technology, communication system will provide more diversity gain, as the new technologies used in LTE-Advance. To-depth study of the LTE system, we first proposal according to 3GPP LTE relevant given protocol and 3GPP members developed LTE physical layer baseband simulation system, and its made a performance simulation, and then presented by other companies LTE performance test results are compared in order to verify its correctness. On this basis, this paper focuses on the link adaptation scheme in the LTE system simulation, adaptive modulation and coding (AMC) and hybrid ARQ algorithm. The two adaptive link program through different ways adaptive control simulation AMC scheme and hybrid ARQ scheme to further improve the system throughput performance. And hybrid ARQ algorithm which simulation performance gain as well as the traditional receiving end in different channel conditions, based on the traditional hybrid ARQ error accumulation, merger brought a new adaptive hybrid ARQ The algorithm, the core idea is adaptively selected by sending end Hybrid ARQ scheme, selectively combined at the receiving end at the same time, to improve the throughput performance of the algorithm of the existing hybrid ARQ. Further cooperative communication system will be adopted in LTE-Advance Research, describes a wide variety of existing collaboration hybrid ARQ algorithm, and designed based on the new rate-compatible convolutional (RateCompatible Punctured Convolutional, RCPC) codeword collaboration Hybrid ARQ algorithm used in cooperative communication systems, and further improve the data rate and the reliability of communications, and to improve the system throughput. The numerical simulation results show that the new collaborative hybrid ARQ algorithm applied to the collaborative communication system will effectively improve the system performance.

Related Dissertations

  1. Study on Implementation Technology of Channel Estimation in OFDM System Based on DSP,TN919.3
  2. The Research on the Vertical Handoff Algorithms in Heterogeneous Wireless Networks,TN929.5
  3. Cooperative Communication Based on Coding,TN929.5
  4. Research on Error Controller of LTE Physical Layer,TN929.5
  5. The Anti-interference Research of Cell in LTE System,TN929.5
  6. The Research of Multi-user Scheduling of RRM for LTE,TN929.5
  7. Uplink Power Control of TD-LTE System,TN929.5
  8. Research on Power Control for Cooperative Communications Based on Cognitive Radio System,TN925
  9. Research on the Relay and M2M Random Access Technology of LTE-Advanced,TN929.5
  10. Research and Implementation of Downlink Simulation Platform Based on the LTE Protocol,TN929.5
  11. Research of Handoff Algorithm in High-speed Railway System,TN929.532
  12. The Research of Virtual Multiple-input Multiple-output for the Uplink of LTE System,TN929.5
  13. Research on the LTE Antenna Applied in 4G Communication,TN828.6
  14. Design and Implementation of Parallel LTE Turbo Decoder,TN929.5
  15. Cooperative communication network technology research cooperative relay node selection,TN929.5
  16. A new dual- LTE-A and robustness of the design,TN929.5
  17. Multiple-input multiple-output (MIMO) antenna technology under study multiple base stations feedback,TN919.3
  18. LTE-WLAN switch interconnection protocol for heterogeneous systems,TN925.93
  19. Cooperative Communications adaptive rate control and power distribution technology research,TN92
  20. FDD LTE base transceiver module RF performance testing and debugging,TN929.5
  21. Cooperative transmission in wireless networks research of key technologies,TN929.5

CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Mobile Communications
© 2012 www.DissertationTopic.Net  Mobile