Research on optimal algorithms in mobile real-time broadcast environment

Data Broadcast is an effective method to solve the serious asymmetric bandwidth of the uplink and downlink in mobile real-time environment. This paper analyzes UFO algorithm and improves UFO from server sending data broadcast and mobile clients receiving data broadcast, then advances SBS algorithm and CRS algorithm. Besides, theoretical analysis and experimental results show that the 2 algorithms could effectively reduce data items' accessing time, so that reduce transactions' dead rate because of missing deadline, the capability is excellent anyway.