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Extensive studies on supporting voice traffic over wireless 802.11 networks have been carried out in the literature. Most of them were focused only on one hop infrastructure mode. This paper addresses the issue of voice over multi-hop wireless networks. Through simulation considering a simple topology, the authors identify the voice traffic bottleneck in 802.11 MAC and thus propose a Burst Queue (BQ) scheme to cooperate with 802.11b and 802.11e MAC protocols. With the rapid deployment of IEEE 802.11 networks, extensive research efforts have been carried out on voice applications over wireless networks.
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