A Priority-Based QoS Routing for Multimedia Traffic in Ad Hoc Wireless Networks with Directional Antenna Using a Zone-Reservation Protocol(Ad-hoc Network)(<Special Section>Mobile Multimedia Communications)
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概要
- 論文の詳細を見る
Quality of Service (QoS) provisioning is a new but challenging research area in the field of Mobile Ad hoc Network (MANET) to support multimedia data communication. However, the existing QoS routing protocols in ad hoc network did not consider a major aspect of wireless environment, i.e., mutual interference. Interference between nodes belonging to two or more routes within the proximity of one another causes Route Coupling. This can be avoided by using zone-disjoint routes. Two routes are said to be zone disjoint if data communication over one path does not interfere with the data communication along the other path. In this paper, we have proposed a scheme for supporting priority-based QoS in MANET by classifying the traffic flows in the network into different priority classes and giving different treatment to the flows belonging to different classes during routing so that the high priority flows will achieve best possible throughput. Our objective is to reduce the effect of coupling between routes used by high and low priority traffic by reserving zone of communication. The part of the network, used for high priority data communication, i.e, high priority zone, will be avoided by low priority data through the selection of a different route that is maximally zone-disjoint with respect to high priority zones and which consequently allows contention-free transmission of high priority traffic. The suggested protocol in our paper selects shortest path for high priority traffic and diverse routes for low priority traffic that will minimally interfere with high priority flows, thus reducing the effect of coupling between high and low priority routes. This adaptive, priority-based routing protocol is implemented on Qualnet Simulator using directional antenna to prove the effectiveness of our proposal. The use of directional antenna in our protocol largely reduces the probability of radio interference between communicating hosts compared to omni-directional antenna and improves the overall utilization of the wireless medium in the context of ad hoc wireless network through Space Division Multiple Access (SDMA).
- 社団法人電子情報通信学会の論文
- 2004-05-01
著者
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UEDA Tetsuro
ATR Adaptive Communications Research Laboratories
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TANAKA Shinsuke
ATR Adaptive Communications Research Laboratories
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Ueda Tetsuro
Atr Adaptive Communications Research Laboratory Keihanna Science City
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UEDA Tetsuro
Advanced Telecommunications Research Institute International (ATR)
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Siuli Roy
Indian Institute of Management Calcutta
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Somprakash Bandyopadhyay
Indian Institute of Management Calcutta
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Roy Siuli
Indian Institute of Management-Calcutta
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Bandyopadhyay Somprakash
Indian Institute of Management-Calcutta
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Ueda T
Nec Co. Kawasaki‐shi Jpn
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SAHA Dola
Indian Institute of Management
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Tanaka S
Atr Adaptive Communications Research Laboratory Keihanna Science City
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Roy Siuli
Indian Institute Of Management
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Bandyopadhyay Somprakash
Indian Institute Of Management
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