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Rateless Coding and Relay Networks

机译：无速率编码和中继网络

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A framework for coding over relay channels using rateless codes is the intersection of two active areas of research in communications; namely relay networks and rateless coding. We demonstrate that there is a very natural and useful fit between these two areas and describe some design challenges and implementation considerations for this framework. The use of relays in wireless communication networks provide a new dimension to the design space of wireless networks that promises enhancements to both the coverage and throughput of the network. In its simplest form, a relay network is a collection of terminals that are able to transmit, receive, and possibly assist the reliable delivery of information from source terminals to destination terminals. Thus, communication of data through a wireless relay network is not required to be direct; it may pass through a number of other terminals, though direct communication from source to destination is not precluded. In fact, it is possible to simultaneously use single-hop, i.e., direct, and multihop communications paths.
机译：使用无速率代码在中继信道上进行编码的框架是通信领域两个活跃的研究领域的交集。即中继网络和无速率编码。我们证明这两个领域之间非常自然和有用的契合，并描述了此框架的一些设计挑战和实现注意事项。在无线通信网络中使用中继为无线网络的设计空间提供了新的维度，有望增强网络的覆盖范围和吞吐量。在最简单的形式中，中继网络是终端的集合，这些终端能够从源终端到目标终端进行传输，接收以及可能帮助可靠地传递信息。因此，通过无线中继网络进行的数据通信不需要是直接的。尽管不排除从源到目的地的直接通信，但它可能会通过许多其他终端。实际上，可以同时使用单跳即直接和多跳通信路径。

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