A performance comparison of three wireless multi hop ad-hoc network routing protocols when streaming MPEG4 traffic
Chowdhury, Morshed, Perera, D. and Pham, Thao 2004, A performance comparison of three wireless multi hop ad-hoc network routing protocols when streaming MPEG4 traffic, in Proceedings of INMIC 2004 : 8th International Multitopic Conference : December 24-26, 2004, National University of Computer and Emerging Sciences, Lahore, Pakistan, IEEE Lahore Section, Lahore, Pakistan, pp. 516-521.
Mobile ad-hoc networks are characterised by constant topology changes, the absence of fixed infrastructure and lack of any centralised control. Traditional routing algorithms prove to be inefficient in such a changing environment. Ad-hoc routing protocols such as dynamic source routing (DSR), ad-hoc on-demand distance vector routing (AODV) and destination-sequence distance vector (DSDV) have been proposed to solve the multi hop routing problem in ad-hoc networks. Performance studies of these routing protocols have assumed constant bit rate (CBR) traffic. Real-time multimedia traffic generated by video-on demand and teleconferencing services are mostly variable bit rate (VBR) traffic. Most of these multimedia traffic is encoded using the MPEG standard. (ISO moving picture expert group). When video traffic is transferred over MANETs a series of performance issues arise. In this paper we present a performance comparison of three ad-hoc routing protocols - DSR, AODV and DSDV when streaming MPEG4 traffic. Simulation studies show that DSDV performs better than AODV and DSR. However all three protocols fail to provide good performance in large, highly mobile network environments. Further study is required to improve the performance of these protocols in mobile ad-hoc networks offering VBR services.
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