科研之友
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摘要
In frequency-selective channels linear receivers enjoy significantly-reduced complexity compared with maximum likelihood receivers at the cost of performance degradation which can be in the form of a loss of the inherent frequency diversity order or reduced coding gain. This paper demonstrates that the minimum mean-square error symbol-by-symbol linear equalizer incurs no diversity loss compared to the maximum likelihood receivers. In particular, for a channel with memory nu, it achieves the full diversity order of (nu + 1) while the zero-forcing symbol-by-symbol linear equalizer always achieves a diversity order of one.
- 出版日期2011-9
