By Topic

An Efficient Retransmission Strategy for Wireless Scalable Video Multicast

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

The purchase and pricing options are temporarily unavailable. Please try again later.
4 Author(s)
Shujuan Wang ; School of Computer and Information Technology,Beijing Jiaotong University, Beijing, China 100044 ; Chen Gong ; Xiaodong Wang ; Mangui Liang

We consider the problem of a base station multicasting a scalable video source to multiple clients, with the clients requiring different video reconstruction qualities. The base station first transmits the video source packets using hierarchical network coding (HNC). Due to the lossy channels, some clients may not receive sufficient packets to reconstruct the video at its desired quality. These clients will request the base station to retransmit. The goal of the proposed retransmission method is to satisfy all clients' requests with the least number of retransmissions. It further offers a "soft" video reconstruction in that the quality of the reconstructed video keeps improving as the clients receive more packets.

Published in:

Wireless Communications Letters, IEEE  (Volume:1 ,  Issue: 6 )