NDLI: Energy conservation and interference mitigation: From decoupling property to win-win strategy

Content Provider	IEEE Xplore Digital Library
Author	Liqun Fu Hongseok Kim Jianwei Huang Soung Chang Liew Mung Chiang
Copyright Year	2010
Description	Author affiliation: Department of Information Engineering, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong (Liqun Fu; Jianwei Huang; Soung Chang Liew) \|\| Department of Electrical Engineering, Princeton University, NJ 08544 USA (Mung Chiang) \|\| Bell Labs, Alcatel-Lucent, NJ 07974 USA (Hongseok Kim)
Abstract	This paper studies the problem of conserving the energy of mobile terminals in a multi-cell TDMA networks supporting bursty real-time sessions. The associated optimization problem involves joint scheduling, rate control, and power control. To tackle the complexity, we propose a decomposition method that decouples the overall problem into two sub-problems: intra-cell energy optimization and inter-cell interference control. This decomposition results in a “win-win” situation: it reduces the energy consumptions and inter-cell interference at the same time. Simulations show that our decomposition method can achieve an energy reduction of more than 70% compared to the simplistic maximum transmit power policy. It can achieve an energy reduction of more than 50% compared to the case where only intra-cell energy optimal transmission is performed. We also derive an interesting decoupling property assuming that the interference power stays constant over a TDMA frame: if the idle power consumption of mobile terminals is no less than their circuit power consumption during transmission, or when both are negligible, then the energy-optimal transmission rates of the mobile terminals are independent of the inter-cell interference power level.
Starting Page	1830
Ending Page	1835
File Size	173731
Page Count	6
File Format	PDF
ISBN	9781424477456
ISSN	07431546
e-ISBN	9781424477463
DOI	10.1109/CDC.2010.5718155
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-12-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interference Mobile communication Signal to noise ratio Power demand Energy consumption Minimization Time division multiple access multi-cell wireless system Energy-efficiency power control rate control scheduling
Content Type	Text
Resource Type	Article
Subject	Control and Optimization Control and Systems Engineering Modeling and Simulation

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2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
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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