Dynamic QoS allocation for multimedia ad hoc wireless networks

Authors:
Hsiao-Kuang Wu;Pei-Hung Chuang
Affiliations:
Department of Computer Science and Information Engineering, National Central University, Chun-Li, Taiwan;Department of Computer Science and Information Engineering, National Central University, Chun-Li, Taiwan
Venue:
Mobile Networks and Applications
Year:
2001

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Abstract

In this paper, we propose an approach to support QoS for multimedia applications in ad hoc wireless network. An ad hoc network is a collection of mobile stations forming a temporary network without the aid of any centralized coordinator and is different from cellular networks which require fixed base stations interconnected by a wired backbone. It is useful for some special situations, such as battlefield communications and disaster recovery. The approach we provide uses CSMA/CA medium access protocol and additional reservation and control mechanisms to guarantee quality of service in ad hoc network system. The reson we choose CSMA protocol instead of other MAC protocols is that it is used in most of currently wireless LAN productions. Via QoS routing information and reservation scheme, network resources are dynamically allocated to individual multimedia application connections.