Abstracto

Frequency Domain Equalization with Mapping of Data Onto Subcarrier Pairs In MIMO OFDM Antenna Diversity

M.Elavarasi ,A. Preethi Vinnarasi

This paper represents a detailed study of diversity coding for MIMO systems. Space Time Block Code (STBC) is a MIMO transmit strategy which exploits transmit diversity and high reliability. Space Time Block Codes are compared to Cyclic Delay Diversity (CDD), the comparison shows that Space Time Block Codes outperforms Cyclic Delay Diversity. In this paper Orthogonal Frequency Division Multiplexing (OFDM) for MIMO channel is proposed to mitigate Inter Symbol Interference (ISI) and enhance system capacity. Algebraic Space Time Block Codes are implemented for enhancing the throughput. The Bit Error Rate is calculated using MATLAB software for varying Signal to Noise Ratio, the experimental results shows that STBC outperforms CDD.