Cooperative transmission via caching helpers

Seong Ho Chae, Jong Yeol Ryu, Tony Q.S. Quek, Wan Choi

研究成果: Conference contribution

40 引文 斯高帕斯(Scopus)

摘要

This paper models the cooperative transmission via caching helpers (cache-based joint transmission), which cache one of the K most popular files, in wireless cellular networks and analyzes its performance in terms of the file transmission success probability in the stochastic geometry framework. For given caching placement, the caching helpers can either provide a file diversity gain by serving different files or a cooperative gain by jointly transmitting the same files. In order to account for the tradeoff between the file diversity gain and the cooperative gain, we derive the cache hit probability and the rate coverage probability. We also find the optimal caching placement balancing the tradeoff and investigate the effects of various system parameters, such as the cooperative region, the density of caching helpers, and the file popularity exponent, on the optimal caching placement.

原文English
主出版物標題2015 IEEE Global Communications Conference, GLOBECOM 2015
發行者Institute of Electrical and Electronics Engineers Inc.
ISBN(電子)9781479959525
DOIs
出版狀態Published - 2015
事件58th IEEE Global Communications Conference, GLOBECOM 2015 - San Diego, United States
持續時間: 2015 十二月 62015 十二月 10

出版系列

名字2015 IEEE Global Communications Conference, GLOBECOM 2015

Other

Other58th IEEE Global Communications Conference, GLOBECOM 2015
國家United States
城市San Diego
期間15-12-0615-12-10

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

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