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Analysis of BER of UWB System Based on RS Codes

Author: LiBaoBao
Tutor: WangHuaKui
School: Taiyuan University of Technology
Course: Signal and Information Processing
Keywords: Ultra-Wideband Pulse position modulation Pulse amplitude modulation Reed-Solomon code Multi-user
CLC: TN925
Type: Master's thesis
Year: 2010
Downloads: 60
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Abstract


Along with the gradual expansion of UWB technology in communications applications, theoretical research on UWB technology along with more in-depth. As UWB one of the key technologies of TH (Time-Hopping) technology, academia has started a lot of attention to invest here. Th art hop sequence analysis of the design and its performance is one of its key aspects. Hopping technology is a very important part of the ultra-wideband impulse radio communications technology, it plays a vital role in the overall system. Hopping sequence ultra wideband pulse wireless technologies to achieve the theoretical basis of the multi-access communication. The hopping sequence number that is the number of users in the communication system, while it is also the entire communication system synchronization and channel detection technology guarantee. Designed hopping sequence performance merits will directly affect the entire ultra-wideband wireless communication system is good or bad. The main contents of this paper are summarized as follows: hopping sequence design from the start, from the theoretical analysis of the RS code as hopping sequences indicators and their related performance TH-UWB transmission system environment and model. Research TH-UWB system processing of the received signal, and noise immunity. PPM modulation PAM modulation, the hopping sequence this study common hopping sequence UWB system performance numerical simulation. Concluded that the RS code as discussed herein as the time-hopping sequences having excellent correlation properties and a large number of the number of sequences, the UWB communication system applicable to the jump. In multipath conditions discussed binary PPM and PAM modulation scheme and the multi-ary PPM modulation performance of the system, mainly derive the bit error rate of the system, between the signal to noise ratio, the number of system users, and system capacity relationship, and verify the theoretical results, we can see the use of computer simulation tools (MATLAB 7.0) using binary modulation relative to the binary modulation UWB system performance indeed improved. UWB systems RAKE receiver, the relationship between the A-Rake, S-Rake and P-Rake performance and reception characteristics and channel characteristics, respectively theory and simulation analysis. Under conditions of the premise of the multi-path condition, the deduced Multiple access performance of the ultra-wideband communication system, the results were further verified by simulation analysis.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Radio relay communications,microwave communications
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