Ordering-based enhanced sphere decoding algorithm of space-time code
基于排序的增强球形空时码译码算法

With spatial multiplexing,sphere decoder can markedly improve the spectrum efficiency.However,the existing sphere decoders can only tackle the real constellation and some special complex constellations.In order to process the constellation with any shape,an enhanced sphere detector called Ordered Sphere Decoding(OSD)was proposed.By ordering candidate Channel State Information(CSI)and adding heuristic rules,the proposed algorithm can obtain near Maximum Likelihood(ML)performance.Detailed simulation results s...