Title :
Influence of Propagation Modeling on VoIP Quality Performance in Wireless Mesh Network Simulation
Author :
Nascimento, Arlen ; Queiroz, Saulo ; Galvao, Leandro ; Mota, Edjair ; Nascimento, Edson
Author_Institution :
Dept. of Comput. Sci., Fed. Univ. of Amazonas (UFAM)
Abstract :
In this paper we evaluate the influence of radio propagation modeling on VoIP quality in wireless network simulations. How propagation modeling can influence classification of strategies concerned in improving VoIP quality? We analyze reactive AODV and proactive OLSR approaches in a simulated 802.11 mesh backbone and calculate the VoIP quality by means of a reviewed version of ITU-TE-Model. Results showed that: a) irrespective of routing strategy, different propagation model configurations can influence speech quality in such a way that it switches from "acceptable" to "unacceptable", b) the classification of such strategies can be highly influenced by propagation models as well as its configurations.
Keywords :
Internet telephony; radiowave propagation; routing protocols; telecommunication network topology; wireless LAN; IEEE 802.11 standard; VoIP quality; proactive OLSR approach; radio propagation modeling; reactive AODV approach; speech quality; wireless mesh network simulation; Analytical models; Delay; Fading; Routing; Shadow mapping; Speech; Spine; Stochastic processes; Traffic control; Wireless mesh networks;
Conference_Titel :
Modeling, Analysis and Simulation of Computers and Telecommunication Systems, 2008. MASCOTS 2008. IEEE International Symposium on
Conference_Location :
Baltimore, MD
Print_ISBN :
978-1-4244-2817-5
Electronic_ISBN :
1526-7539
DOI :
10.1109/MASCOT.2008.4770590
