The MAC Mechanism with QoS Provision Based on Stream-Maintenance in Ad Hoc Networks

Because the signal of different nodes interferes with each other, the collision happens frequently in ad hoc networks. If only adopting contention-based MAC protocol, it is hard to guarantee quality of service (QoS) of multi-media services such as voice and video in ad hoc network. A series of perio...

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Bibliographic Details
Main Authors: Qiu Jigang, Li Huijie, Lin Xiaokang
Format: Conference Proceeding
Language:English
Subjects:
Ad hoc networks
Analytical models
Delay
Media Access Protocol
Network topology
Packaging
Performance analysis
Quality of service
real-time data stream
resource reserve mechanism
Streaming media
the Ad Hoc networks
Throughput
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Summary:Because the signal of different nodes interferes with each other, the collision happens frequently in ad hoc networks. If only adopting contention-based MAC protocol, it is hard to guarantee quality of service (QoS) of multi-media services such as voice and video in ad hoc network. A series of periodical realtime service packages from the same source node can be regarded as a real-time data stream. By adopting the resource reserve mechanism to improve the IEEE 802.11 DCF, a new type of MAC mechanism including MAC-FM and MAC-FM (E) is brought forward in this paper. MAC-FM and MAC-FM (E) reserve dynamically the time slots for the real-time data stream in distributed mode to avoid the collision of real-time service packages. In addition, the networks performance including delay and throughput is analyzed in theory and validated via simulation. The result indicates that MAC-FM and MAC-FM (E) can decrease the delay greatly and increase the throughput of ad hoc networks
DOI:10.1109/ITST.2006.289020