Patent ID: 7321564
Filing Date: 2008-01-22
Classification: H04B,H04L

Abstract:
1. A method of decoding a constellation transmitted on subchannels of orthogonal frequency division multiplexed (OFDM) symbols in a wireless communication system, the method comprising: receiving a signal comprising a constellation of transmitted OFDM symbols; decoding an OFDM symbol having a higher signal-to-noise ratio (SNR) among the received OFDM symbols; estimating the probability that a correct OFDM symbol has been decoded; decoding the next higher SNR OFDM symbol via linear minimum mean-squared error estimation (LMMSE) processing if the probability of error exceeds a predetermined threshold; and subtracting the contribution of decoded symbol from the received signal followed by decoding the next higher-SNR OFDM symbol via iterative minimum mean-squared error estimation (IMMSE) processing if the probability of error does not exceed the predetermined threshold.