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The centralized medium access control (centralized MAC) protocol, which utilizes an Access Point (AP) to coordinate stations in wireless networks, guarantees the quality of service (QoS) for transmission, and provides good throughput in the highly congested network. However, the centralized MAC protocol cannot be adopted in ad hoc networks, because it provides only single-hop transmission. This paper...
Backbone wireless mesh networking concept has been developed in order to provide higher bandwidth, better QoS (less delay and jitter) and larger coverage range compared with previous network types. These factors should be balanced in an appropriate way in order to satisfy mentioned goals. In this paper an optimization framework has been proposed in order to maximize throughput according to upper bound...
As wireless local area networks (WLAN) become ubiquitous and an integral part of data networks, they will also be increasingly used for applications ranging from standard Internet services like ftp to time bound multimedia applications, such as Voice (or Video) over IP (VoIP/VIP), HDTV etc. with strict latency, throughput or jitter restrictions. These applications on WLAN will also be more bandwidth...
Bandwidth reservation in wireless networks is a very challenging task due to the instability of radio channels, node mobility and lack of coordination between nodes. Reservation MAC protocols define a super-frame and allocate as lot to each real-time traffic source. However, the use of fixed length super-frame may result in bandwidth wasting, especially when heterogeneous classes of traffic with different...
In this paper, we study medium-access-control (MAC) protocols with quality-of-service (QoS) support, topology-transparent broadcast scheduling (TTBS), in multihop time-division multiple-access (TDMA) ad hoc networks. TTBS focuses on the QoS provisioning that each node can successfully transfer the same packet to all the other nodes within its communication range simultaneously (broadcast traffic)...
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