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Optical Packet Switching (OPS) technologies are among the most promising solutions for next generation Internet. In this paper, we address quality of service (QoS) and fairness issues in a novel OPS ring architecture with a slotted synchronous transmission mode. The basic MAC protocol in the studied architecture is similar to the CSMA/CA mechanism. Using this mechanism, each node in the network may...
IEEE 802.16, popularly known as WiMAX, is one of the most innovative methods developed in recent times to address growing demand for high-speed wireless broadband networks. This paper addresses the problems concerning the delivery of video packets in video conferencing and other multimedia application services over WiMAX. Multiple competing traffic sources over a point-to-multipoint WiMAX topology...
This paper proposes a fast forward medium access control protocol (FFMAC) for quality-of-service (QoS) guarantee in multihop IEEE 802.11s wireless mesh networks with multiple channels. To the best of our knowledge, the proposed protocol is the first one which considers the multihop and multichannel issues simultaneously. It provides higher priority for real-time applications, while remaining the distributed...
The evolution of telecommunications is characterized by an increase of availability of bandwidth and the user mobility. It takes to a revolution in offers of the service quality. The notion of quality of service (QoS) becomes then an important concept if one wants to transport information with a maximum of reliability. The most important metrics of QoS are the rate, the delay (as well as the jig)...
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