An Effective Capacity Estimation Scheme in IEEE802.11-based Ad Hoc Networks

 

H. Zafar*^1,2, D. Harle¹, I. Andonovic¹, L. Hasan², S. Mahmud²

 

¹ Department of Electronic and Electrical Engineering, University of Strathclyde, Glasgow, UK.

² Department of Computer Systems Engineering and Department of Electrical Engineering, University of Engineering and Technology, Peshawar, Pakistan. *haseeb@nwfpuet.edu.pk.

 

ABSTRACT

Capacity estimation is a key component of any admission control scheme required to support quality of service provision in mobile ad hoc networks. A range of schemes have been previously proposed to estimate residual capacity that is derived from window-based measurements of channel estimation. In this paper a simple and improved mechanism to estimate residual capacity in IEEE802.11-based ad hoc networks is presented. The scheme proposes the use of a ‘forgiveness’ factor to weight these previous measurements and is shown through simulation-based evaluation to provide accurate utilizations estimation and improved residual capacity based admission control.

Keywords: admission control, capacity estimation, mobile ad hoc networks, quality of service.

 

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