| 摘要 |
A method of determining which of n symbol streams detected by a receiver in the uplink or downlink of a multiple input/multiple output (MIMO) wireless communication system should be processed first in an ordered successive interference cancellation (OSIC) scheme, each of the n detected symbol streams being an estimate of a transmitted symbol stream transmitted by a transmitter of the communication system, comprises the steps of: calculating, for each of the n detected symbol streams, a value s, where s = ±. SNR n + (1- ±).” SNRn , SNR n being the received signal-to-noise-and-interference ratio (SNR) for the nth detected symbol stream, ” SNRn being the margin from the received SNR for the nth detected symbol stream to the threshold of the operating modulation and coding scheme (MCS) for the nth detected symbol stream, and ± being a weighting parameter in the range from 0 to 1 selected so as to optimise an error rate probability value for the n detected symbol streams; and selecting the detected symbol stream with the highest value of s to be the first of the n detected symbol streams to be processed in the OSIC scheme.
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