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Multiple Input Multiple Output (MIMO) wireless communication link has beentheoretically proven to be reliable and capable of achieving high capacity.However, these two advantageous characteristics tend to be addressed separatelyin many major researches. Researches on various approaches to attain bothcharacteristics in a single MIMO system are still on-going and an establishedapproach is yet to be concluded. To address this problem, in this paper aVertical Bell Laboratories Layered Space-Time (V-BLAST) MIMO enhanced withRate-Compatible Convolutional (RCPC) codes with Zero Forcing (ZF) and MinimumMean Squared Error (MMSE)-based detection is proposed. The analytical BER ofthe system is presented and numerically analyzed. The system performance isanalyzed in Nakagami-m fading channel, which provides accuracy and flexibilityin matching the signals statistics compared to other fading models. Thecomplexity which arises in the calculations of the RCPC codes parameters issignificantly reduced by using equivalent convolutional codes. Results showthat the use of high-rate code allows for bandwidth efficiency and at the sametime does not severely degrades the system performance. It is also shown thatthe MMSE-based system outperforms the conventional ZF-based system especiallyin the low Eb/N0 region and in severe fading conditions.

Performance of RCPC-Encoded V-BLAST MIMO In Nakagami-m Fading Channel