Supporting QoS with location aware pre-reservation in mobile ad hoc networks

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

2 Scopus Citations
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Author(s)

Detail(s)

Original languageEnglish
Pages (from-to)3476-3480
Journal / PublicationConference Record - International Conference on Communications
Volume6
Publication statusPublished - 2004
Externally publishedYes

Conference

Title2004 IEEE International Conference on Communications
LocationPalais des Congrès - Porte Maillot
PlaceFrance
CityParis
Period20 - 24 June 2004

Abstract

Due to MAC collisions and mobility, quality of service (QoS) provisioning in mobile ad hoc networks is very challenging. In this paper, we propose an innovative scheme to grant high priority to communications between some important nodes in TDMA based ad hoc networks. In addition to bandwidth reservation in previous QoS routing approaches, our scheme adopts a new approach: bandwidth pre-reservation. Some bandwidth is pre-reserved at intermediate nodes in a quadrangle-shaped area formed between important nodes. The key idea is to utilize each node's geographic location information and minimize potential scheduling conflicts for transmissions. In this way, time slot collisions in adjacent wireless links along a path can be reduced so that more high priority connections can be accepted into the network. Extensive simulations show that our scheme can successfully provide better communication quality at a relatively low price.

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