Dissertation > Excellent graduate degree dissertation topics show

Research of Space-Time Coding Technology in MIMO Mobile Communications Systems

Author: HuXueQin
Tutor: YangWei
School: Beijing Jiaotong University
Course: Communication and Information System
Keywords: MIMO STC Correlated channel V-BLAST STBC MC-CDMA
CLC: TN929.5
Type: Master's thesis
Year: 2008
Downloads: 433
Quote: 3
Read: Download Dissertation

Abstract


Multiple Input Multiple Output (MIMO) technology is a great breakthrough in mobile communications, which can greatly increase the system capacity and spectrum efficiency without occupying any more bandwidth. It is the key technology in next generation of the mobile communications. Space-Time coding (STC) technology is a new coding technique which can combat with channel attenuation, obtain diversity gain against fading and enhance the capacity. MIMO combined with STC is the new development of communications. STC can be divided into two kinds: spatial multiplexing technology represented by vertical bell laboratory layered space time (V-BLAST); transmit diversity technology represented by space time block coding (STBC).This paper study on the above two schemes, evaluate system performance by simulation and theoretical results. The main content and innovation include:1. V-BLAST systems with zero-forcing (ZF) receiver is studied. On the basis of closed-form solutions for symbol error rate (SER) of independence Rayleigh fading channel, the closed-form solutions for SER of correlated channel is derived and verified by Monte Carlo simulations. The impact of spatial fading correlation on the system performance and capability is analyzed.2. Review the detection algorithms of V-BLAST, which includes ZF, minimum mean square error and successive interference cancellation. Simulate and analyze the impact of antenna numbers and algorithm on the system performance and complexity.3. Five coding schemes of STBC based on complex signal constellation is studied. The closed-form solutions for SER of independence Rayleigh fading channel is derived and verified by Monte Carlo simulations, analyzed the error performance and algorithm complexity, lay a theoretical foundation for evaluating those schemes.4. Multi-carrier CDMA (MC-CDMA) has frequency diversity and good performance. Combined the STBC based on real signal constellation with MC-CDMA technology, proposed the transmitter and receiver structure, derived the closed-form solutions for SER and verified by Monte Carlo simulations, analyze the impact of antenna, subcarrier and user number on the system performance and capability. The results show that the STBC MC-CDMA system get space, time and frequency gain and dramatically improve the system performance, capacity and spectrum efficiency.

Related Dissertations

  1. Research on Optimization of the Relay Node Location of Cooperative Diversity,TN925
  2. Genetic Diversity of Magnaporthe Grisea from Rice in Jiangsu and Identification of Resistance Rice Blast Gene,S435.111.41
  3. Resistance Analysis of the Code Region of Pib Gene to Blast in Transgenic Rice under Different Promoters,S435.111.41
  4. Screening and Evaluation of Antagonistic Organisms Against Pyricularia Grisea and Xanthomonas Oryzae PV.Oryzae,S435.111.4
  5. Proteomic Research of Rice Plasma Membrane Protein under Blast Stress,S511
  6. Resistant Identification and Genotype Analysis of Several Rice Varieties to Blast in Jiangsu Area,S511
  7. Fine Mapping of the Blast Resistance Gene Pimh (t) and Detection of Major QTLs in Rice Elite Restorer Line Minghui63,S511.21
  8. A Study of the Methods to Reduce Peak-to-average Power Ratio of MIMO-OFDM System,TN919.3
  9. Research and Design of HART Communication Module Yston SUPMAX800D Sem,TP273.5
  10. The PLC Design and Implementation of Blast Furnace System Based on Experts-learning Algorithm,TP273
  11. Research on Key Technologies of Green Communications Basing on MIMO Environments,TN929.5
  12. Research on the Control Channels of IEEE 802.16m,TN929.5
  13. Study on the Related Parameters of High-Speed Mobile Channel,TN919.3
  14. Study on the High-Speed Mobile Channel Estimation,TN919.3
  15. The Theoretical and Experimental Research on MIMO Detection for Small Target in Waveguide,TB566
  16. The Theoretical and Experimental Research on the Collocated MIMO Detection,TB566
  17. Research on the Application of the MIMO Space-time Coding Theory,TN911.22
  18. Research on Improved Quasi-orthogonal Space-time Block Code,TN911.22
  19. Research and Design of FFT Processor for MIMO-OFDM Applications,TN919.3
  20. A Novel Multiport Matching Network Model of an Indoor MIMO System,TN919.3
  21. A Study on Base Station Sector Antennas for Mimo Communications,TN828.6

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