- Title
- A simple model for non-homogeneous and non-saturated IEEE 802.11 DCF infrastructure BSS
- Creator
- Ong, Eng Hwee; Khan, Jamil Y.; Mahata, Kaushik
- Relation
- 12th IEEE International Conference on Communication Systems (ICCS 2010). Proceedings of the 12th IEEE International Conference on Communication Systems (Singapore 17-19 November, 2010) p. 506-511
- Publisher Link
- http://dx.doi.org/10.1109/ICCS.2010.5686681
- Publisher
- Institute of Electrical and Electronics Engineers (IEEE)
- Resource Type
- conference paper
- Date
- 2010
- Description
- We propose a simple unified analytical model to analyze the IEEE 802.11 DCF infrastructure BSS performance in terms of MAC delay, PLR, and throughput efficiency under non-homogeneous and non-saturation conditions. Our model accounts for: (i) asymmetric traffic load between an AP and its associated STAs of an infrastructure BSS; (ii) transition from the non-saturation to saturation mode (and vice-versa) from an AP perspective; (iii) heterogeneous traffic flows between STAs; and (iv) heterogeneous wireless channel conditions between BSSs of a multi-AP hotspot scenario, all in a single unifying framework. More specifically, we integrate a Markov chain model in conjunction with a finite queueing model to analyze the QoS performance of DCF infrastructure BSS, which will be useful for capacity analysis and the design of network control mechanisms. Extensive analyses and simulations have unveiled that the improper modeling or ignorant of backoff freezing for an infrastructure BSS will result in overly conservative bounds which will lead to low network utilization when deployed as admission control, particularly, in heavy load scenarios.
- Subject
- Markov processes; access protocols; quality of service; queueing theory; telecommunication congestion control; telecommunication traffic; wireless LAN; wireless channels
- Identifier
- http://hdl.handle.net/1959.13/933633
- Identifier
- uon:11677
- Identifier
- ISBN:9781424470068
- Rights
- Copyright © 2010 IEEE. Reprinted from the Proceedings of the 12th IEEE International Conference on Communication Systems. This material is posted here with permission of the IEEE. Such permission of the IEEE does not in any way imply IEEE endorsement of any of the University of Newcastle's products or services. Internal or personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution must be obtained from the IEEE by writing to pubs-permissions@ieee.org. By choosing to view this document, you agree to all provisions of the copyright laws protecting it.
- Language
- eng
- Full Text
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