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With the increase of multimedia traffic over the past few years and traffic differentiation introduced by IEEE 802.11e, nodes with delay-sensitive multimedia traffic tend to be busy for long periods, thus exacerbating the congestion problem in Mobile Ad Hoc NETworks (MANETs). Although most of the existing routing protocols are based on the shortest path algorithm, some other metrics like load and delay have also been considered in some other research. In this paper, the authors first expose that the performance of MANETs routing protocols is highly dependent on the type of traffic generated or routed by intermediate nodes.
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