NDLI: Interference Management and Power Allocation for Energy-Efficient Cognitive Femtocell Networks

Content Provider	Springer Nature Link
Author	Xie, Renchao Yu, F. Richard Ji, Hong
Copyright Year	2013
Abstract	Energy efficiency of radio networks is a very important issue to meet the challenges raised by the high demands of traffic and energy consumption. Both cognitive radio and femtocell have the potential ability for high energy efficiency. However, most of previous works are focused on interference avoidance to guarantee the quality of service (QoS) by power control and spectrum sharing in heterogeneous cognitive radio networks with femtocells, and the energy efficiency aspect is largely ignored. In this paper, we study the energy efficiency aspect of power allocation and interference management in heterogeneous cognitive radio networks with femtocells. Particularly, due to sharing the same spectrum resource for cross-tier cognitive radio networks with femtocells, there is a cross-tier interference between fetmocells and macrocell. In this case, we introduce an interference price to measure the effect of interference. Then we formulate the problem of power allocation and interference management for energy-efficient transmissions in heterogeneous cognitive radio networks with femtocells as a Stackelberg game. And we use the backward induction method to solve the optimal power allocation and price determination. An iteration algorithm based on price updating is proposed to obtain the Stackelberg equilibrium solution. Simulation results are illustrated to demonstrate the Stackelberg equilibrium by the proposed iteration algorithm, and energy efficiency can be improved significantly in the proposed scheme.
Starting Page	578
Ending Page	590
Page Count	13
File Format	PDF
ISSN	1383469X
Journal	Mobile Networks and Applications
Volume Number	18
Issue Number	4
e-ISSN	15728153
Language	English
Publisher	Springer US
Publisher Date	2013-03-24
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Cognitive radio Femtocell Energy efficiency Interference price Stackelberg game Communications Engineering, Networks Computer Communication Networks Electrical Engineering Business Information Systems
Content Type	Text
Resource Type	Article
Subject	Computer Networks and Communications Information Systems Hardware and Architecture Software

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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