Low complexity equalization with an efficient coding scheme for broadband mobile radio systems

In this paper, different low complexity equalization schemes applied to mobile radio channels are investigated and compared. Using Monte Carlo simulations for the bit error rates the performance losses of the different low complexity equalization schemes in comparison to ideal equalization represented by the matched filter bound are determined. It is shown, that considerable complexity reduction is possible with a performance loss of less than 1 dB under the assumption that the appropriate receiver structure is chosen. Moreover, a single-parity-check encoding scheme with low complexity soft decoding is presented which achieves a coding gain of about 2.8 dB at a bit error rate of P_b=10^-4