Simulation study of integrated data/voice services in multihop packet radio networks

The performance of integrated data/voice services in multihop packet radio networks is investigated through simulation with emphasis on the effect of low layer protocols on the performance of services. Two important quality measures, average packet delay and average packet drop rate, are simulated under practical conditions. Moreover, some new low layer protocols that support integrated data/voice services are proposed. Simulation results show that low layer protocols play an important role in the behavior of networks and the proposed protocols significantly improve the performance of data/voice integration. Even in case of a heavy load, these protocols can provide an acceptable quality of voice service for a certain number of users.