Abstract We investigate mobile device-to-device (D2D) caching networks where mobiles called receiving devices (RDs) can receive data directly from caching server devices (CSDs). In mobile D2D caching networks, the quality of communications can be greatly enhanced because end-to-end communication ranges are shortened compared to cellular communications. In this paper, we propose a completely distributed transmission algorithm for mobile caching networks (DMC) based on signal-to-generating interference ratio (SGIR) that can eliminate overhead for signaling and feedback. In the DMC, each CSD autonomously chooses an RD to transmit data to and the CSD multicasts the data to RDs that requested the same data. One CSD is only activated to transmit data to each RD in a distributed manner based on timers. Our numerical results show that the DMC can yield comparable average sum-rates to a centralized scheme in various environments with no extra overhead.

中文翻译：

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一种用于移动设备到设备缓存网络的完全分布式传输算法

摘要 我们研究了移动设备到设备 (D2D) 缓存网络，其中称为接收设备 (RD) 的移动设备可以直接从缓存服务器设备 (CSD) 接收数据。在移动 D2D 缓存网络中，由于与蜂窝通信相比，端到端通信范围缩短了，因此可以大大提高通信质量。在本文中，我们提出了一种基于信号与生成干扰比（SGIR）的移动缓存网络（DMC）完全分布式传输算法，该算法可以消除信令和反馈的开销。在 DMC 中，每个 CSD 自主选择一个 RD 来传输数据，并且 CSD 将数据多播给请求相同数据的 RD。一个CSD只被激活，以基于定时器的分布式方式向每个RD传输数据。