Broadcast Voice Streaming by Load-aware Flooding over Ad Hoc Networks achieving Reduction of Traffic and Power Consumption

When an ad hoc network is to be used in a disaster situation, it is likely that emergency information will be broadcast by voice streaming from a small number of nodes. Conventionally, simple flooding (SF) has been used as a method of broadcasting streams to the entire network. However, if SF is applied to information flows in which packets are generated at a high rate, as is the case with voice streams, packet loss will occur frequently, causing degradation in the quality of service. For the broadcast delivery of high-load information flows such as voice streams, we have already proposed a Load-aware Dynamic Counterbased Flooding (LDCF). In this paper, LDCF is applied to broadcast voice streaming, and is compared with SF using network simulation. It is shown that LDCF results in reduced packet loss and a lower volume of generated traffic than SF.