Joint equalization and decoding for a rateless coded V-OFDM system

A novel rateless coded Vector Orthogonal Frequency Division Multiplexing (V-OFDM) system for adaptive transmission over wireless channels is studied in this paper. In particular, an iterative receiver with joint V-OFDM equalization and ratelss decoding is designed, which exchanges the logarithmic likelihood information between the belief propagation decoder and the maximum likelihood equalizer or the hard/soft decision based equalizer recursively. Both analytical and numerical results show that the proposed algorithm significantly improves the system performance with a modest complexity.