BER Performance Comparison of Low Processing Gain TDD-CDMA System with Various Spreading Sequences in Mobile Fading Channels

2006 ◽  
Author(s):  
Fang-Biau Ueng ◽  
Hsuan-Fu Wang ◽  
Riche Chang ◽  
Li-Der Jeng
Keyword(s):  
Fading Channels ◽  
Performance Comparison ◽  
Cdma System ◽  
Processing Gain ◽  
Spreading Sequences ◽  
Mobile Fading Channels ◽  
Ber Performance

scholarly journals Improvement of BER performance in MIMO–CDMA systems by using initial–phase optimized gold codes

2013 ◽  
Vol 64 (1) ◽  
pp. 38-43 ◽  
Author(s):  
Ibrahim Develi ◽  
Meryem Filiz
Keyword(s):  
Fading Channels ◽  
Interference Cancellation ◽  
Initial Phase ◽  
Multiple Input Multiple Output ◽  
Cdma System ◽  
Gold Codes ◽  
Output Code ◽  
Input Multiple Output ◽  
Code Division Multiple ◽  
Ber Performance

This paper describes a new approach to improve the bit error rate (BER) performance of a multiple-input multiple-output code-division multiple-access (MIMO-CDMA) system over quasi-static Rayleigh fading channels. The system considered employs robust space-time successive interference cancellation detectors and initial-phase optimized Gold codes for the improvement. The results clearly indicate that the use of initial-phase optimized Gold codes can significantly improve the BER performance of the system compared to the performance of a multiuser MIMO-CDMA system with conventional nonoptimized Gold codes. Furthermore, this performance improvement is achieved without any increase in system complexity.

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