Optimized energy-aware window control for IEEE 802.11ah based networks in smart grid enabled cities

Wang, Yanru, Liu, Chao, Chai, Kok Keong and Loo, Jonathan (2016) Optimized energy-aware window control for IEEE 802.11ah based networks in smart grid enabled cities. In: Smart Grid Inspired Future Technologies: First International Conference (SmartGift 2016), 19-20 May 2016, Liverpool, UK.

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Abstract

IEEE 802.11ah brings Restricted Access Window (RAW) to decrease collision probability for smart grid applications. The RAW size affects transmission energy consumption and data rate for the different number of devices per group. In this paper, we investigate an energy efficient RAW optimization problem for IEEE 802.11ah based uplink communications. We formulate the problem based on overall energy consumption and the data rate of each RAW by applying probability theory. Then, we derive the energy efficiency of the uplink transmission. Last but not the least, a dynamic energy-aware window algorithm to adapt the RAW size is proposed to optimize the energy efficiency by identifying the number of slots in each RAW for different group scales. Simulation results show that our proposed algorithm outperforms existing RAW on uplink energy efficiency and delivery ratio.

Item Type: Conference or Workshop Item (Paper)
ISSN: 1867-8211
ISBN: 9783319477282
Identifier: 10.1007/978-3-319-47729-9_17
Page Range: pp. 165-173
Uncontrolled Keywords: Smart grid, IEEE 802.11ah, RAW Uplink, energy efficiency
Subjects: Computing > Systems > Computer networking
Computing
Depositing User: Jonathan Loo
Date Deposited: 21 Jun 2017 15:32
Last Modified: 13 Oct 2017 11:53
URI: http://repository.uwl.ac.uk/id/eprint/3467

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