Abstract:

An improved crossinterference iterative decoding algorithm for multiple input multiple output(MIMO) structure was proposed to reduce the interference among users employing the same resource in generalized distributed antenna array architecture of beyond 3G(B3G) system. The traditional decoding algorithm for Bell lab layered space time (BLAST) code and interference cancellation by transferring information among multiantenna arrays were combined. The iterative decoding process was performed for several times, which would solve the problem of interference among users in adjacent coverage areas of antenna arrays and improve the performance of the system effectively.

Key words: generalized distributed antenna array, Bell lab layered space time code, crossinterference cancellation, iterative gain