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Factorization for Advanced Physical Layer Techniques in Network-Coded Wireless Communication Networks

机译:网络编码的无线通信网络中高级物理层技术的分解

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We consider the utility maximization problem in wireless multi-hop networks with unicast and multicast communication and jointly optimize routing or network coding together with the physical layer. Since for any communication demands the performance is predominately determined by the region of achievable rates on edges between nodes, we provide a framework for including advanced physical layer methods in wireless networks by means of factorizing the achievable rate region into a set of advanced elementary rate regions. Various advanced physical layer operations such as broadcast and multiple access channels are included. Additionally, the wireless multicast advantage is efficiently modeled for degraded channels, namely broadcast and multicast, to improve performance of multicast sessions. Numerical examples show the impact of the physical layer onto the optimal routing or network coding solution and the benefits of advanced physical layer operations.
机译:我们考虑了具有单播和多播通信的无线多跳网络中的效用最大化问题,并与物理层一起共同优化路由或网络编码。由于对于任何通信需求,性能主要取决于节点之间边缘上可达到的速率区域,因此我们提供了一个框架,用于通过将可达到的速率区域分解为一组高级基本速率区域,在无线网络中包括高级物理层方法。 。包括各种高级物理层操作,例如广播和多个访问通道。另外,针对降级的信道(即广播和多播)有效地建模了无线多播优势,以提高多播会话的性能。数值示例显示了物理层对最佳路由或网络编码解决方案的影响以及高级物理层操作的好处。

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