Therefore, computational complexity is greatly reduced while keeping the same coding gain.
因此，在保持相当的编码增益的同时，计算复杂度得到了极大的降低。
Channel coding technology which can bring coding gain and save valuable power resource becomes a key technology in modern communication system.
信道编码技术能够带来编码增益，节省宝贵的功率资源，已经成为现代通信系统必不可少的关键技术。
By using new DSTBC in OFDM communications system channel estimation is nto necessary and coding gain is gotten.
通过在OFDM通信系统中应用新型差分空时分组码（DSTBC），获得编码增益，无需信道估计。
Using this new scheme, higher diversity order and coding gain can be achieved than STBC at the same coding rate.
这种编码在相同的码速率下，实现了比stbc更大的分集度和更高的编码增益。
Lastly, the performance of the scheme is given in terms of the asymptotic coding gain as well as bandwidth efficiency.
最后从编码增益和频带有效性角度对该方案的性能作了评价。
However, STBC only shows diversity gain but free of coding gain. Consequently, the error capacity of an STBC design is limited.
但是，空时分组编码只具有分集增益而缺乏编码增益，这使其在纠错能力上大为逊色。
Concatenation of an inner code and an outer code may provide a high coding gain and the capacity of a long code to correct errors.
级联码是将两个或多个单码级联，在不增加译码复杂度的情况下，可以得到高的编码增益，达到与长码相同的纠错能力。
As the relay node's involvement, the agreement can take full advantage of multi-user cooperative spatial diversity and the time diversity and coding gain from retransmission mechanism.
由于中继节点的参与，该协议可充分利用多用户协作的空间分集和出错重传所带来的时间分集和编码增益。
Aiming at the performance characteristics of MB-OFDM UWB, the formula for coding gain and diversity gain is worked out based on pairwise error probability of theoretical analyzing system.
针对MB - OFDMUWB系统的性能特征，基于理论分析系统的成对错误概率，获知编码增益和分集增益的计算公式，从而得到空时频编码方案的设计准则。
Aiming at the performance characteristics of MB-OFDM UWB, the formula for coding gain and diversity gain is worked out based on pairwise error probability of theoretical analyzing system.
针对MB - OFDMUWB系统的性能特征，基于理论分析系统的成对错误概率，获知编码增益和分集增益的计算公式，从而得到空时频编码方案的设计准则。
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