Abstract: Data broadcast is an efficient way of data dissemination in wireless environments. In this paper the theoretical analysis was provided first for the three data broadcast mode(periodic broadcast, on-demand broadcast and hybrid broadcast). Then current data scheduling algorithms were classified and compared. Some typical multi channel scheduling algorithms were analyzed in detail. Finally we pointed out some research areas for data broadcast scheduling.

Key words: Wireless environments, Data broadcast, Scheduling, Multi-channel, Queuing theory