Relay-based video multicast with network coding in multi-rate wireless networks

Ching-Ju Lin*, Szu Ting Lee

*Corresponding author for this work

研究成果: Conference contribution同行評審

8 引文 斯高帕斯(Scopus)

摘要

The wireless broadcast nature enables a video source to multicast a stream to a group of mobile clients efficiently. However, since different clients might experience heterogeneous wireless channel conditions, the throughput of single-hop multicast schemes is bounded by the clients that experience a poor channel condition. This paper presents a relay-based video multicast scheme that allows the clients experiencing a better channel condition to select a suitable transmission bit-rate and relay data for neighboring poorly-connected clients. We first formulate a joint time-allocation and rate-selection model that allocates bandwidth resources to each relay node, and then propose a network-coding-based forwarding scheme to determine which video frames should be forwarded by each relay. Our evaluation results show that the proposed relay-based scheme can utilize channel bandwidth more efficiently, and, therefore, improve the average visual quality by up to 5dB as compared to single-hop multicast.

原文English
主出版物標題2011 IEEE Global Telecommunications Conference, GLOBECOM 2011
DOIs
出版狀態Published - 1 十二月 2011
事件54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011 - Houston, TX, United States
持續時間: 5 十二月 20119 十二月 2011

出版系列

名字GLOBECOM - IEEE Global Telecommunications Conference

Conference

Conference54th Annual IEEE Global Telecommunications Conference: "Energizing Global Communications", GLOBECOM 2011
國家United States
城市Houston, TX
期間5/12/119/12/11

指紋 深入研究「Relay-based video multicast with network coding in multi-rate wireless networks」主題。共同形成了獨特的指紋。

引用此