A leader-based reliable multicast MAC protocol for MPEG-4 traffic

초록

Multicasting is an efficient way for group communications because one sender can transmit data to multiple receivers only by one transmission. Multimedia applications are expected to become more prevalent over mobile ad-hoc networks in the near future. Therefore, reliability in multimedia communication is an important task. However, IEEE 802.11 standard does not provide any reliable multicast. In MPEG-4, the losses of different frames have different impact on video quality. In this paper, the effects of different frame types losses on Peak Signal to Noise Ratio (PSNR) are shown, and a reliable multicast MAC layer protocol for MPEG-4 traffic is proposed to enhance video quality and reduce the probability of a collision when the traffic volume exceed the network capacity. © Springer-Verlag Berlin Heidelberg 2012.

키워드