...关键词：网络编码；天线分集增益；分布式天线系统；系统中断概率 [gap=701]Key words: network coding; antenna diversity gain; distributed antenna system; probability of system outage ..
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VBLAST可以有效提高多发射天线系统容量，而STBC则具有较高的分集增益，通过将两种方案结合起来组成一个新的系统。
The VBLAST can be used to exploit the capacity potential provided by multiple transmit antenna systems. The STBC has higher diversity gain.
多接收天线可以对判决似然比和迭代译码的外部信息提供分集增益，从而进一步提高系统性能。
Multi-receive antennas can also provide the diversity gain for LLR information and iterative extrinsic information.
主天线（100）和分集天线（105）是在物理上分开的，并且其取向使得它们具有不同的天线增益图形。
The main antenna (100) and diversity antenna (105) are physically separated and oriented such that they have different antenna gain patterns.
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