Make Stable QoS in Wireless Multimedia Ad Hoc Network with Transmission Diversity

Providing stable Quality of Service (QoS) of multimedia transmission in wireless mobile Ad Hoc network is still a challenging problem. In this paper, we present a novel transmission diversity scheme which uses multiple transmitting nodes and space-time block codes in physical layer. Multi-path route is generated in network layer. This scheme has been proved to be an efficient way to offer stable QoS in wireless mobile environment. Specifically, the network equipped with the new scheme can provide the same Symbol Error Rate (SER) in physical layer, whereas the total energy consumption of transmission is decreased by diversity transmission.