The Multi-level Mapping Sequential Gaussian Approximation for MIMO Detection
This paper presents a low complexity detection scheme, based on sequential Gaussian Approximation, called multi-level mapping SGA detection, for multi-input multi-output wireless communication systems with high-order QAM modulation. In the SGA detection, only part of transmit symbol combinations contributing significantly to posterior probabilities are retained, having a complexity linear with retained branches number. Due to the property of high-order QAM formats, the new scheme calculates the sequence weight in step of two bits, resulting in a complexity reduction from exponential in the modulation order to linear, compared to basic SGA detection. Simulation results show that the multi-level mapping SGA can provide near the performance of the basic SGA detection.
MIMO Sequential Gaussian Approximation multi-level mapping iterative receiver
Fan Wang Wei Zhao Yong Xiong
The Electromagnetics Academy at Zhejiang University,Zhejiang University Shanghai Research Center for Wireless Communications
国际会议
武汉
英文
2006-09-01（万方平台首次上网日期，不代表论文的发表时间）