Throughput Enhancement for Mobile Ad Hoc Networks by Using Transfer Rate Adaptation, Back-to-Back Transmission, and Frame Fragmentation(Ad-hoc Network)(<Special Section>Mobile Multimedia Communications)

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概要

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• Multi-rate capabilities are supported by the physical layers of most 802.11 devices. To enhance the network throughput of MANETs, transfer rate adaptation schemes at MAC layer should employ the multi-rate capability at physical and the information of previous transmissions provided by MAC and physical layers. In this paper, we propose a transfer rate adaptation scheme plus back-to-back frame transmissions, and fragmentation at MAC layer, named TRAP. TRAP adopts a bi-direction-based approach with an extended option to select an appropriate rate for frame transmission under fast changing channel conditions. Consecutive back-to-back frame transmissions to fully utilize good channel quality during a coherent time interval and fragmentation algorithm to maintain high throughput under worse channel conditions are recommended in TRAP. Extensive simulation is experimented to evaluate the performance of TRAP. Regarding simulation results, frame delivery ratio, network throughput, and fairness of TRAP are significantly improved by comparing to that of fix rate, ARF, REAR, OAR, and AAR protocols.

• 2004-05-01

著者

• Lin Chun-hung

  Computer Science Engineering Department National Sun Yat-sen University

• Liu Chien-yuan

  Electronic Engineering Department Cheng-shiu University:computer Science Engineering Department Nati

関連論文

• Throughput Enhancement for Mobile Ad Hoc Networks by Using Transfer Rate Adaptation, Back-to-Back Transmission, and Frame Fragmentation(Ad-hoc Network)(Mobile Multimedia Communications)

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