Base-Station Assisted Device-to-Device Communications for High-Throughput Wireless Video Networks

被引：0

作者：

Golrezaei, Negin ^{[1
]}

Molisch, Andreas F. ^{[1
]}

Dimakis, Alexandros G. ^{[1
]}

机构：

[1] Univ So Calif, Dept Elect Eng, Los Angeles, CA 90089 USA

来源：

2012 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS (ICC) | 2012年

关键词：

D O I：

暂无

中图分类号：

TN [电子技术、通信技术];

学科分类号：

0809 ;

摘要：

We propose a new scheme for increasing the throughput of video files in cellular communications systems. This scheme exploits (i) the redundancy of user requests as well as (ii) the considerable storage capacity of smartphones and tablets. Users cache popular video files and - after receiving requests from other users - serve these requests via device-to-device localized transmissions. We investigate what is the optimal collaboration distance, trading off frequency reuse with the probability of finding a requested file within the collaboration distance. We show that an improvement of spectral efficiency of one to two orders of magnitude is possible, even if there is not very high redundancy in video requests.

引用

页数：5

共 8 条

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