The work modelled the emerging IEEE 802.11p for wireless VANETs. The paper examines the impact of differing traffic densities and road layouts upon an overlay network s performance. However, routing of streamed services over multiple hops and multiple paths may lead to significant packet losses, resulting in unacceptable quality of service. Tests show this can achieve a gain of over 5 dB in video quality (PSNR) depending on video content and packet loss rates. To achieve video streaming over a VANET overlay, this study introduces a spatial partition of a video stream based on flexible macroblock ordering. Overlay networks with multiple sources have proven to be robust, distributed solutions to multimedia transport, including streaming. This study seeks to establish under what conditions (mobility, network size, wireless channel) multi-source video streaming is feasible across a wireless vehicular ad hoc network (VANET). KeywordsMobile Ad hoc Networks-Routing Protocols-Pervasive Computing-Proactive Routing-Reactive Routing-Hybrid Routing-Performance Analysis-Protocols Comparison Perspectives and highlights avenues for future research. Leads to a survey of existing work, which captures the performance of ad hoc routing algorithms and their behaviour from different We discuss performance issues and metrics required for the evaluation of ad hoc routing protocols. This chapter reviews the key studies carried out so far on the performance of mobile ad hoc Due to highly dynamic topology, absence of established infrastructure for centralizedĪdministration, bandwidth constrained wireless links, and limited resources in MANETs, it is challenging to design an efficientĪnd reliable routing protocol. Terminals for routing and transport services. MANETs introduce a new communication paradigm, which does not require a fixed infrastructure – they rely on wireless In fact, future advances in pervasiveĬomputing rely on advancements in mobile communication, which includes both infrastructure-based wireless networks and non-infrastructure-based Support pervasive computing, where user can communicate anywhere, anytime and on-the-fly. Mobile ad hoc networks (MANETs) are a fundamental element of pervasive networks and therefore, of pervasive systems that truly
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