Implemented Process of SD Algorithm for MIMOOFDM Systems
This paper mainly focuses on basic principle and full implemented process of SD Algorithm, which are heuristic or direct to be used for MIMO systems in IEEE 802.16 protocol PHY. As to the all de-SM methods including direct inverse, SICZF, SIC-MMSE, SD, MLD, although MLD has the highest computation load, its performance is much better than other methods (except SD). It is very obvious that receive diversity is more influential to system than transmit diversity. Simulations show that direct inverse method is the worst, and also has error floor. SIC-MMSE and SIC-ZF almost have the same performance and no error floor exists. However, the best one is ML and SD methods, which have about 4 dB better than SICMMSE and SIC-ZF in Rayleigh channel.
MIMO OFDM sphere decoding
LU Xin XU Jun
Institute of information technology Shenzhen institute of information technology Shenzhen, China Baseband algorithm department Mobile division, ZTE corporation Shenzhen, China
国际会议
上海
英文
2007-09-21（万方平台首次上网日期，不代表论文的发表时间）