A Maximum Likelihood (ML) based OSTBC-OFDM System over Multipath Fading Channels

Ramaswamy T., K. Chennakesava, Jaggari Manasa
2015 International Journal of Computer Applications  
This paper proposes a space-time block-coded orthogonal frequency-division multiplexing (STBC-OFDM) scheme for frequency-selective fading channels which does not require channel knowledge either at the transmitter or at the receiver. This paper proposed a generalized maximum likelihood estimation decoding algorithm. Due to the orthogonality nature of STBC, the rule for decoding was reduced to a single step. The performance investigation of the proposed system was done over Rayleigh fading
more » ... l and also over the Rician fading channel. Simulation results reveal the performance of proposed STBC communication system is near optimum.
doi:10.5120/ijca2015907142 fatcat:u3hygtkafvhbzifryzen4l3uce