Random early detection gateways for congestion avoidance
IEEE/ACM Transactions on Networking (TON)
Distributed fair scheduling in a wireless LAN
MobiCom '00 Proceedings of the 6th annual international conference on Mobile computing and networking
A real-time medium access control protocol for ad hoc wireless local area networks
ACM SIGMOBILE Mobile Computing and Communications Review
Asynchronous Multimedia Multihop Wireless Networks
INFOCOM '97 Proceedings of the INFOCOM '97. Sixteenth Annual Joint Conference of the IEEE Computer and Communications Societies. Driving the Information Revolution
MAC Layer Protocols for Real-Time Traffic in Ad-Hoc Wireless Networks
ICPP '02 Proceedings of the 2002 International Conference on Parallel Processing
A priority MAC protocol to support real-time traffic in ad hoc networks
Wireless Networks
MSWiM '04 Proceedings of the 7th ACM international symposium on Modeling, analysis and simulation of wireless and mobile systems
PE-WASUN '04 Proceedings of the 1st ACM international workshop on Performance evaluation of wireless ad hoc, sensor, and ubiquitous networks
A supporting service differentiation multichannel MAC protocol for wireless ad hoc networks
International Journal of Communication Networks and Distributed Systems
Service differentiation mechanisms for WLANs
Ad Hoc Networks
IEEE Wireless Communications
Provisioning of multimedia services in 802.11-based networks: facts and challenges
IEEE Wireless Communications
Performance analysis of priority schemes for IEEE 802.11 and IEEE 802.11e wireless LANs
IEEE Transactions on Wireless Communications
Incomplete cooperation-based service differentiation in WLANs
Wireless Communications & Mobile Computing
QoS issues in ad hoc wireless networks
IEEE Communications Magazine
Quality-of-service in ad hoc carrier sense multiple access wireless networks
IEEE Journal on Selected Areas in Communications
Performance analysis of the IEEE 802.11 distributed coordination function
IEEE Journal on Selected Areas in Communications
IEEE Journal on Selected Areas in Communications
Supporting service differentiation in wireless packet networks using distributed control
IEEE Journal on Selected Areas in Communications
Admission control in IEEE 802.11e wireless LANs
IEEE Network: The Magazine of Global Internetworking
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MAC layer plays an important role for providing quality of service in mobile ad hoc networks. Accordingly, a real-time data frame should be provided with higher channel access priority than that of a best-effort data frame. This paper proposes a strict priority-based variant of the IEEE 802.11 DCF for QoS provision at the MAC layer of MANETs. The service differentiation is achieved by two mechanisms: a) a priority-based non-overlapping contention window selection, so that smaller backoff timer values are assigned to real-time data frames to reduce their channel access delay; b) a priority-based queue management and packet scheduling to improve the intra-node service differentiation. Performance of the proposed scheme is investigated for single hop scenarios using a Markov chain model whose accuracy is validated through simulation. Furthermore, simulation studies in multihop scenarios show suitability of the proposed scheme to provide an enhanced level of service differentiation, especially in terms of end-to-end delay and throughput, for supporting QoS at MAC layer of MANETs.