Distributed QoS guarantees for realtime traffic in ad hoc networks

Author

Yang, Yaling ; Kravets, Robin

Author_Institution

Dept. of Comput. Sci., Illinois Univ., Urbana, IL, USA

fYear

2004

fDate

4-7 Oct. 2004

Firstpage

118

Lastpage

127

Abstract

In this paper, we propose a new cross-layer framework, named QPART (QoS protocol for ad hoc realtime traffic), which provides QoS guarantees to real-time multimedia applications for wireless ad hoc networks. By adapting the contention window sizes at the MAC layer, QPART schedules packets of flows according to their unique QoS requirements. QPART implements priority-based admission control and conflict resolution to ensure that the requirements of admitted real time flows is smaller than the network capacity. The novelty of QPART is that it is robust to mobility and variances in channel capacity and imposes no control message overhead on the network.

Keywords

ad hoc networks; channel capacity; mobile radio; multimedia communication; protocols; quality of service; real-time systems; telecommunication congestion control; telecommunication traffic; MAC layer; channel capacity; cross-layer framework; distributed QoS guarantee; priority-based admission control; quality of service; real-time multimedia application; realtime traffic; wireless ad hoc network; Ad hoc networks; Application software; Channel capacity; Communication system traffic control; Computer science; Intelligent networks; Protocols; Quality of service; Resource management; Telecommunication traffic;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor and Ad Hoc Communications and Networks, 2004. IEEE SECON 2004. 2004 First Annual IEEE Communications Society Conference on

Print_ISBN

0-7803-8796-1

Type

conf

DOI

10.1109/SAHCN.2004.1381909

Filename

1381909