协作分集协议研究现状与比较；
The current development and compare of cooperative diversity protocols;
在现有的各种协作分集协议中，分布式空时编码是最有代表性的协作协议。
In all the cooperative diversity protocols, Distributed SpaceTime Coding (DSTC) is the most representative.
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。
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。
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.
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