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  1. Proceedings of the 1st ACM workshop on Cognitive radio architectures for broadband (CRAB '13)
  2. Energy efficiency impact of cognitive femtocells in heterogeneous wireless networks
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Cognitive radios and the vehicular cloud
On the cascading spectrum contention problem in self-coexistence of cognitive radio networks
Push the limit of wireless network capacity: a tale of cognitive and coexistence
Advanced cognitive radio test-bed with carrier aggregation in TV white space
The cognitive in cognitive radio
Energy efficiency impact of cognitive femtocells in heterogeneous wireless networks
A resource allocation algorithm for users with multiple applications in 4G-LTE
Spread spectrum based cooperative communication transceiver on FPGA platform
Multiple description coding for uncompressed video streaming over 60GHz networks
Truthful multi-attribute auction with discriminatory pricing in cognitive radio networks
Primary weight measure and its support in stochastic routing for dynamic cognitive radio networks

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Energy efficiency impact of cognitive femtocells in heterogeneous wireless networks

Content Provider ACM Digital Library
Author Gür, Gürkan Bayhan, Suzan Alagöz, Fatih
Abstract The recent surge in mobile broadband traffic has been accompanied by diminishing revenues per bit and spectral bottleneck for mobile cellular networks. For this purpose, cognitive radio concept embedded in smaller cells, i.e. cognitive femtocell networks (CFNs), is promising as a potential component of future heterogeneous networks. However, the ongoing mobile traffic explosion is also expected to result in higher energy consumption and larger carbon footprint which is a major challenge against green communications objective. Thus, energy efficiency (EE) has become a key research focus for these broadband access systems. In this work, we analyze the introduction of cognitive femtocells into wireless networks from energy efficiency perspective. We propose an analytical model for such CFN-deployed heterogeneous networks and evaluate the impact of CFN proliferation on energy consumption discussing the relevant tradeoffs and practical issues. We observe two fundamental findings: 1- CFN is beneficial for improving EE. 2- The resultant EE gains are dependent on intricate factors entailing femtocell deployment density, CFBS proliferation rate, sensing period selection and interference management.
Starting Page 53
Ending Page 60
Page Count 8
File Format PDF
ISBN 9781450323680
DOI 10.1145/2508478.2508480
Language English
Publisher Association for Computing Machinery (ACM)
Publisher Date 2013-10-04
Publisher Place New York
Access Restriction Subscribed
Subject Keyword Energy efficiency Cognitive radio Femtocells
Content Type Text
Resource Type Article
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