Zero–AIC Header Compression with Multiple Description Coding for 4G Wireless Networks

It is expected that video streaming services will play an important role in 4G wireless systems. Since video communication has typically large and varying bandwidth requirements, high spectrum utilization techniques are needed to support high quality video. In this paper we propose a combination of Cooperative Header Compression (COHC) method with Multiple Description Coding (MDC), which introduces robustness and yields high compression gain for the compression scheme without the need of feedback channel. MDC is a very attractive coding scheme that is suitable for heterogeneous terminals and can benefit from multipath diversity. Unfortunately, MDC introduces overhead in terms of network and coding overhead. Here we focus on the methods to reduce the network overhead. The proposed header compression scheme is based on cooperative behavior of parallel channels. The obtained results show that the proposed method outperforms other combinations of MDC with the header compression schemes in terms of decompression rate.