Selection cooperation in multi-source cooperative networks
Selection cooperation in multi-source cooperative networks
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DOI：
10.1109/twc.2008.060184
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发表时间：
2008
影响因子：
10.4
通讯作者：
Elzbieta Beres;R. Adve
中科院分区：
文献类型：
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作者：
Elzbieta Beres;R. Adve
在具有多个潜在中继和多个同时传输的合作网络中，我们提出了选择合作，其中每个源与一个单一的“最佳”中继配对。我们分析了一个简单的，完全分布式的选择方案，需要一些反馈，但没有集中的中断概率，并表明它优于分布式空时码的网络有三个以上的中继节点。这些收益是由于在使用选择的网络中更有效地使用功率。我们提出了另外两个更复杂的选择方案的基础上增加系统的智能化和集中化，并表明，对于较小的网络规模，他们的性能改善简单的选择方案是不显着的。
In a cooperative network with multiple potential relays and multiple simultaneous transmissions, we present selection cooperation wherein each source pairs with a single "best" relay. We analyze the outage probability of a simple and completely distributed selection scheme, requiring some feedback but no centralization, and show that it outperforms distributed space-time codes for networks with more than three relaying nodes. These gains are due to the more efficient use of power in networks using selection. We suggest two other more complex selection schemes based on increasing system intelligence and centralization, and show that for smaller network sizes their performance improvement over the simple selection scheme is not significant.