Based on cyclic diagonal codes, an improved design of unitary space-time codes (USTC) at low SNR is proposed.

在低信噪比情况下，提出了一种基于循环对角码的改进的酉空时码设计。

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A decoding algorithm based on the tree-structured constellation design was presented in order to reduce the decoding complexity of unitary space-time codes.

针对酉空时码最大似然检测复杂度高的问题，提出了一种酉空时星座的设计及低复杂度译码方法。

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A new method of unitary space-time constellation, which can improve the influence on block error rate by fast fading, is designed based on a systematic method.

在系统化酉空时星座设计方法的基础上，提出了一种抗信道快变的酉空时星座设计方案。

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Cornwall produces about 300, 000 tonnes of waste a year and, according to the Conservative-Independent led unitary council, the county will run out of landfill space by 2014.

BBC: Conservation challenge to Cornwall incinerator plan