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篇名 |
Cache Placement Optimization in D2D-assisted Wireless Cognitive Networks
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並列篇名 | Cache Placement Optimization in D2D-assisted Wireless Cognitive Networks |
作者 | Cheng Zhan、Zhe Wen、Hong Lai、Zhiguo Qu |
英文摘要 | In this paper, we consider the cooperative caching in wireless cognitive device-to-device (D2D) network, where unlicensed users can use under-utilized licensed spectrum and cached contents can be shared by cooperating with each other. We formulate the cooperative caching problem to minimize the download time of mobile users. A heuristic caching strategy is then proposed to handle the content placement in the caches. Simulation results show that the proposed caching scheme can significantly reduce total download time compared with the traditional caching scheme. |
起訖頁 | 1435-1441 |
關鍵詞 | Cooperative caching、Content placement、Device-to-Device、Cognitive networks |
刊名 | 網際網路技術學刊 |
期數 | 201809 (19:5期) |
出版單位 | 台灣學術網路管理委員會 |
DOI |
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