Adaptive Transmit Diversity Selection (Atds) Based on STBC and SFBC Fir 2x1 Mimo Ofdm Systems

Abstract

In this paper, a new adaptive transmit diversity selection (ATDS) scheme is proposed for future wireless communication system to provide high spectral efficiency (SE) and good quality of service (QOS) .The ATDS scheme selects the space time block code (STBC) orthogonal frequency division multiplexing (OFDM) scheme for flat fading channel and it selects space frequency block code (SFBC) OFDM scheme for frequency selective fading channel. The proposed scheme provides low average bit error rate (BER) and high average SE by using the benefits of STBC-OFDM for flat fading channel and SFBC-OFDM for frequency selective fading channel. The obtained simulation results validate this statement.