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首页> 外文期刊>IEEE Signal Processing Magazine >Cooperative Wireless Mobile Caching: A Signal Processing Perspective
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Cooperative Wireless Mobile Caching: A Signal Processing Perspective

机译：合作无线移动缓存：信号处理透视

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Cache-aided communications have shown potential for substantial improvement in network performance, which goes far beyond that of traditional caching. Traditional caching (i.e., the bringing and storing of data closer to the end users) is only efficient when a significant portion of the popular files can be locally stored. In cache-aided communications, however, information stored at one user is useful for interference mitigation even if it is requested only by another user. The core idea in cache-aided communication is to use this interferencecancellation opportunity to simultaneously serve multiple users by sending a sum of multiple packets. By creating opportunities for multicasting, the improved performance scales with the accumulated cache size at all users. This is a great advantage for modern networks, where the number of users is typically large, and a small amount of memory can easily be allocated at each user. This article presents the novel techniques of cache-aided communications while focusing on the signal processing aspects that lie in the heart of these schemes. In particular, we examine the three well-studied signal processing problems at the core of cache-aided communications: resource allocation, beamforming design, and interference mitigation.
机译：缓存辅助通信显示了网络性能大幅提高的潜力，这远远超出了传统缓存的潜力。传统缓存（即，靠近最终用户的数据，将数据较近的数据）仅在本地存储的重要文件的重要部分时才有效。然而，在缓存辅助通信中，即使仅由另一用户请求，也可存储在一个用户的信息对于干扰缓解。缓存辅助通信中的核心思想是通过发送多个数据包的总和来使用此干涉性协议机会同时为多个用户提供服务。通过创建多播的机会，可以在所有用户累积缓存大小的改进性能尺度。这对于现代网络来说是一个很大的优势，其中用户数量通常很大，并且在每个用户可以容易地分配少量存储器。本文介绍了高速缓存辅助通信技术，同时专注于位于这些方案的核心中的信号处理方面。特别是，我们研究了缓存辅助通信核心的三个良好的信号处理问题：资源分配，波束形成设计和干扰缓解。

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