Proactive Caching for Mobile Video Streaming in Millimeter Wave 5G Networks
Proactive Caching for Mobile Video Streaming in Millimeter Wave 5G Networks
复制标题
毫米波 5G 网络中移动视频流的主动缓存
DOI:
10.1109/twc.2016.2598748
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发表时间:
2016-10
影响因子:
10.4
通讯作者:
Shen Xuemin
中科院分区:
文献类型:
--
作者:
Qiao Jian;He Yejun;Shen Xuemin
Mobile video streaming is fundamental to advanced applications in the fifth generation (5G) networks. Millimeter wave (mmWave) communication represents a leading 5G technology, which provides rich bandwidth and, therefore, great potentials for high-quality mobile video streaming. However, mobile video streaming in mmWave 5G networks faces fundamental challenges due to mmWave antenna directivity and high user mobility. As such, users typically have short connection durations and frequent handoffs, making video streaming suffer from long handoff delays and connection latency. In this paper, we tackle the issues by developing a caching-based mmWave framework, which precaches video contents at the base station for handoff users and thus significantly reduces the connection and retrieval delays. As a result, high-mobility users with frequent handoffs can enjoy continuous high-quality video streaming. Specifically, we model the proposed system as a cache management problem and attain optimal video streaming quality by using Markov decision process to dynamically allocate proper cache memory space of each base station to mobile users. A cell-by-cell decomposition method is proposed to solve the dynamic programming problem with significantly reduced computational complexity. Using extensive simulations, we demonstrate that the proposed solution can effectively maintain high-quality mobile video streaming for high-mobility 5G users moving among mmWave small cells with directional antenna.
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影响因子:
10.4
作者:
Director Journals R. S CHOBER;J. U. Z. Hang;J. O. M. Ilizzo;Chair J EFFREY A NDREWS;L. Y. Ang;N. P. Rasad;T. VirginiaTech;Q. Uek;M. P. Ayaro;.-C.W Ang-C.W-Ang-2288306564;AreaEditor K.-K. W ONG-AreaEditor-K.-K.-W-ONG-2288306387;EN C.-K.W
通讯作者:
Director Journals R. S CHOBER;J. U. Z. Hang;J. O. M. Ilizzo;Chair J EFFREY A NDREWS;L. Y. Ang;N. P. Rasad;T. VirginiaTech;Q. Uek;M. P. Ayaro;.-C.W Ang-C.W-Ang-2288306564;AreaEditor K.-K. W ONG-AreaEditor-K.-K.-W-ONG-2288306387;EN C.-K.W
DOI:
10.1145/75246.75248
发表时间:
1989-08
期刊:
--
影响因子:
--
作者:
A. Demers;S. Keshav;S. Shenker
通讯作者:
A. Demers;S. Keshav;S. Shenker
DOI:
10.1109/tcsvt.2008.919109
发表时间:
2008-05
影响因子:
8.4
作者:
Jianwei Huang;Zhuo Li;M. Chiang;A. Katsaggelos
通讯作者:
Jianwei Huang;Zhuo Li;M. Chiang;A. Katsaggelos
影响因子:
11.2
作者:
Andrews, Jeffrey G.
通讯作者:
Andrews, Jeffrey G.
影响因子:
7.3
作者:
T. Luan;L. Cai;Xuemin Shen
通讯作者:
T. Luan;L. Cai;Xuemin Shen