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Energy efficiency analysis of collaborative compressive sensing for cognitive radio networks
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Kishore, Rajalekshmi, Gurugopinath, Sanjeev, Muhaidat, Sami, Sofotasios, Paschalis C., Dianati, Mehrdad and Al-Dhahir, Naofal (2019) Energy efficiency analysis of collaborative compressive sensing for cognitive radio networks. In: GLOBECOM 2018 IEEE Global Communications Conference, Abu Dhabi, UAE, 9-13 Dec 2018. Published in: 2018 IEEE Global Communications Conference (GLOBECOM) pp. 1-6. ISBN 9781538647288. doi:10.1109/GLOCOM.2018.8647779
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Official URL: http://dx.doi.org/10.1109/GLOCOM.2018.8647779
Abstract
We investigate the energy efficiency of a conventional collaborative compressed sensing (CCCS) scheme in cognitive radio networks. In particular, we derive expressions for the throughput, energy consumption and energy efficiency, and analyze the trade-off between the achievable throughput and the energy consumption of the underlying CCCS scheme. Furthermore, we formulate a multiple variable non-convex optimization problem to determine the optimum compression level that maximizes the energy efficiency, subject to interference constraints. We propose a sub-optimal solution based on tight approximations to simplify the aforementioned optimization problem, and further demonstrate that the energy efficiency achieved by the CCCS scheme is higher than that of conventional collaborative sensing scheme, under the same predefined conditions. It is further shown that the increase in the energy efficiency of CCCS scheme is due to the considerable decrease in the energy consumption, which is particularly noticeable with a large number of sensors.
Item Type: | Conference Item (Paper) | ||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Chemistry | ||||||
Journal or Publication Title: | 2018 IEEE Global Communications Conference (GLOBECOM) | ||||||
Publisher: | IEEE | ||||||
ISBN: | 9781538647288 | ||||||
Book Title: | 2018 IEEE Global Communications Conference (GLOBECOM) | ||||||
Official Date: | 21 February 2019 | ||||||
Dates: |
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Page Range: | pp. 1-6 | ||||||
DOI: | 10.1109/GLOCOM.2018.8647779 | ||||||
Status: | Peer Reviewed | ||||||
Publication Status: | Published | ||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||
Conference Paper Type: | Paper | ||||||
Title of Event: | GLOBECOM 2018 IEEE Global Communications Conference | ||||||
Type of Event: | Conference | ||||||
Location of Event: | Abu Dhabi, UAE | ||||||
Date(s) of Event: | 9-13 Dec 2018 | ||||||
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