In this book one of the promising approach for wireless communication methods are described. In this book the V-BLAST method used in per Antenna Coding is discussed.With such a system the throughput can be increased by simultaneously transmitting different streams of data on the different transmitting antennas but at the same carrier frequency. The V-BLAST algorithm is a multi-layer symbol detection scheme which detects symbols transmitted at different transmit antennas successively in a certain data independent order.