Simplified Blind Multiuser Receiver for OFDM System with Space-Time Block Codes
In this paper, we examine the blind multiuser detection (BMUD) for orthogonal frequency division multiplexing (OFDM) systems with space–time block codes (STBC). The BMUD for STBCOFDM system has been extensively studied in future communication systems. The proposed receivers implemented by linearly constrained minimum variance filters are designed to achieve this goal. However, the filter suffers from the heavy computational load and slow convergence speed. The proposed twostage receiver contains adaptive BMUD then followed by a channel estimator and RAKE receiver. The twostage receiver which uses the property of STBC to design receiver, reduces the biterrorrate (BER) tremendously for the compared receivers. Finally, Computer simulations demonstrate that the proposed twostage receiver has better performance than the traditional receiver with much lower computational load.
component blindmultiuserdetection(BMUD) OFDM STBC.
Lanfang Jia
Department of Electronic Information and PhysicsChangzhi UniversityChangzhi, PR China 046011
国际会议
广州
英文
1-3
2011-05-13（万方平台首次上网日期，不代表论文的发表时间）