|Authors||J. Xiang, J. He, S. Sesay and N. Xie|
|Title||Subjective Quality Evaluation for Voice Over MANET|
|Publication Type||Proceedings, refereed|
|Year of Publication||2005|
|Conference Name||the 2005 International Conference on Wireless Communications, Networking and Mobile Computing(WCNM 2005)|
Due to the dynamic and multihop nature of the mobile ad-hoc network (MANET), voice communication over MANET may encounter many challenges. We set up a subjective quality evaluation model using ITU-T E-model with extension. And through simulation in NS-2, we evaluate how the following factors impact voice quality in MANET: the number of hops, the number of route breakages, the number of communication pairs and the background traffic. Using AODV as the underlying routing protocol, and with the MAC layer changed from 802.11 DCF to 802.11e EDCF, we observe that 802.11e is more suitable for implementing voice communication over MANET.