Distributed video streaming using complete complementary sequences

Khirallah, Chadi and Stankovic, Vladimir and Stankovic, L. and Yang, Yang and Xiong, Zixiang (2007) Distributed video streaming using complete complementary sequences. In: Picture coding symposium, 2007-11-07 - 2007-11-09.

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Abstract

In many distributed video streaming applications multiple terminals stream correlated video data to a central station to be processed. The fact that those terminals may be placed within a short range of each other in a time-varying environment, results in a high level of interference, multipath fading and noise effects. One classical solution to reduce those effects is to employ the well-known spread spectrum technique; however, this leads to a substantial increase in the required bandwidth and usually makes the system not acceptable for real-time wireless video communications. In this paper we provide a novel spreading scheme that reduces the required bandwidth by exploiting correlation among different terminal observations of a video source without performance penalty. Results obtained show reduction in a terminal transmission rate of approximately 1 Mbit/sec per terminal for the same reconstructed video quality.