Analysis of diversity-multiplexing tradeoff bounds of ZF-SIC systems with error propagation

Bounds on the diversity-multiplexing tradeoff (DMT) curves of the Bell labs layered space-time (BLAST) architecture are analyzed, where zero-forcing successive interference cancellation (ZF-SIC) receivers are employed. The DMT curve in the presence of error propagation caused by SIC process is derived under the assumption that each transmit antenna employs Gaussian random coding and the interference caused by detection errors has Gaussian distribution. This result can provide a lower bound on that of the ZF-SIC receiver with error propagation.