论文标题
通用网络的压缩方案
Compress-Forward Schemes for General Networks
论文作者
论文摘要
在通用网络中研究了压缩 - 前向（CF）方案。一电池通道的CF速率定义了一般网络的CF速率和支持此速率的压缩率矢量区域的外部围绕。我们表明，使用常规解码和恒定编码延迟，可以实现外部围栏，从而避免了指数的延迟和对噪声网络编码和向后解码的双向通信的限制。引入了分层的概念是为了将常规CF方案与在解码 - 向前设置中的流量分解框架进行协调。层对应于常规解码方案。外部外部的任何所需的压缩率向量都是可以通过某些分层来实现的，这可以在流动分解中使用相同的“移位”操作。在单独的工作中，我们表明“转移”最大程度地减少了找到分层所需的操作，从而最大程度地减少了压缩速率矢量区域的复杂性。
Compress-forward (CF) schemes are studied in general networks. The CF rate for the one-relay channel defines outerbounds on both the CF rate for general networks and the compression rate-vector region supporting this rate. We show the outerbound is achievable using regular decoding with constant encoding delays, avoiding the exponential delays and restrictions on bidirectional communication in noisy network coding and backward decoding. The concept of layering is introduced to harmonize regular CF schemes with the framework of flow decomposition in the decode-forward setting. Layerings correspond to regular decoding schemes. Any desired compression rate-vector in the outerbound is achievable by some layering, which is found using the same "shift" operation in flow decomposition. In separate work, we show that "shifting" minimizes the operations needed to find layerings and thus minimizes the complexity of the compression rate-vector region.
