標題: QoS routing in ad hoc wireless networks
作者: Lin, CHR
Liu, JS
資訊工程學系
Department of Computer Science
關鍵字: ad hoc wireless networks;code division multiple access (CDMA);quality-of-service (QoS);personal communication networks;routing;TDMA;vitural circuit
公開日期: 1-Aug-1999
摘要: The emergence of nomadic applications have recently generated much interest in wireless network infrastructures that support real-time communications. In this paper, we propose a bandwidth routing protocol for quality-of-ser,ice (QoS) support in a multihop mobile network. The QoS routing feature is important for a mobile network to interconnect wired networks with QoS support (e.g., ATM, Internet, etc.). The QoS routing protocol can also work in a stand-alone multihop mobile network for real-time applications. Our QoS routing protocol contains end-to-end bandwidth calculation and bandwidth allocation. Under such a routing protocol, the source (or the ATM gateway) is informed of the bandwidth and QoS available to any destination in the mobile network. This knowledge enables the establishment of QoS connections within the mobile network and the efficient support of real-time applications. In addition, it enables more efficient call admission control. In the case of ATM interconnection, the bandwidth information can be used to carry out intelligent handoff between ATM gateways and/or to extend the ATM virtual circuit (VC) service to the mobile network with possible renegotiation of QoS parameters at the gateway. We examine the system performance in various QoS traffic hows and mobility environments via simulation. Simulation results suggest distinct performance advantages of our protocol that calculates the bandwidth information, It is particularly useful in call admission control, Furthermore, "standby" routing enhances the performance in the mobile environment. Simulation experiments show this improvement.
URI: http://dx.doi.org/10.1109/49.779924
http://hdl.handle.net/11536/31180
ISSN: 0733-8716
DOI: 10.1109/49.779924
期刊: IEEE JOURNAL ON SELECTED AREAS IN COMMUNICATIONS
Volume: 17
Issue: 8
起始頁: 1426
結束頁: 1438
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