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Modelling the impact of interference on the energy efficiency of WLANs

Version 2 2024-06-05, 05:30
Version 1 2019-08-22, 08:43
journal contribution
posted on 2024-06-05, 05:30 authored by C Xu, Z Han, Q Wang, G Zhao, S Yu
The high-bandwidth demands from variety of applications drive a dense wireless local access network (WLAN), which results in a complicated wireless network scene with serious co-channel interference and energy waste. In this paper, to reveal the interactions between interference and energy efficiency, we propose an interference-energy efficiency (IFEE) model to quantify the interference impact on the energy efficiency of 802.11 access point (AP) devices. Firstly, we introduce the channel separation and the difference of received signal strength indication (D-RSSI) as two indicators to extend the classical signal to interference plus noise ratio (SINR) notion and rate adaptive mechanism. Then, these two parameters are integrated into the energy consumption model to establish the IFEE model. Lastly, we conduct extensive measurements with five typical WiFi interference scene in real network to validate the effectiveness of our model. The comparisons between simulation results and real data demonstrate that the proposed IFEE model can quantify the interference and energy efficiency with high accuracy, which can be used for wireless network optimization and protocol design.

History

Journal

Concurrency and computation: practice and experience

Volume

31

Article number

5217

Pagination

1-13

Location

Chichester, Eng.

ISSN

1532-0626

eISSN

1532-0634

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2019, John Wiley & Sons, Ltd

Issue

17

Publisher

John Wiley & Sons