Quality-of-Service (QoS) Framework for Multi-rate Wireless Ad-hoc Network (MWAN)

Yow-Yiong Edwin Tan, Stephen McLaughlin, David I. Laurenson

Research output: Chapter in Book/Report/Conference proceedingOther chapter contribution


We propose MWAN, a multi-rate network model to deliver differentiated service in a wireless mobile ad-hoc network (MANET) with varying physical-layer link speed. The proposed architecture is modelled using a multi-dimensional Markov chain to support both real-time and non-real-time applications. It is demonstrated that various types of data arrival process can be modelled by a Markov Modulated Arrival Process (MMAP). Numerical analyzes are drawn to estimate the packet drop probability, effective throughput and packet queuing delay. We validate the scheme by simulating under different link utilizations with IEEE 802.11 Distributed Coordination Function (DCF) ad hoc mode. Analytical and simulation results are compared to determine the accuracy of the presented methods. Increased Quality-of-Service (QoS) performance is achieved for high priority traffic.
Original languageEnglish
Title of host publicationInternational Workshop on Wireless Ad-hoc Networks (IWWAN 2005) Proceedings
Publication statusPublished - 2005
EventInternational Workshop on Wireless Ad-hoc Networks 2005 - London, United Kingdom
Duration: 23 May 200526 May 2005


ConferenceInternational Workshop on Wireless Ad-hoc Networks 2005
Abbreviated titleIWWAN 2005
Country/TerritoryUnited Kingdom


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