Energy-efficient opportunistic scheduling schemes in wireless networks

Authors:
Sung-Guk Yoon;Changhee Joo;Saewoong Bahk
Affiliations:
INMC, School of EECS, Seoul National University, Seoul, Republic of Korea;Department of EECE, Korea University of Technology and Education, Cheonan, Chungnam, Republic of Korea;INMC, School of EECS, Seoul National University, Seoul, Republic of Korea
Venue:
Computer Networks: The International Journal of Computer and Telecommunications Networking
Year:
2011

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Abstract

Exploiting the multiuser diversity in wireless networks has a fundamental tradeoff between throughput and energy saving. To balance the tradeoff, we reconsider the opportunistic scheduling in the aspect of energy saving, and propose a new energy-efficient opportunistic (EEFO) scheduling. Our goal is to maximize the performance of bits per energy unit under the constraint of fair resource allocation, and EEFO scheduling achieves it by controlling the number of users participating in the channel feedback. Through simulations, we show that EEFO scheduling is able to transmit significantly more amount of traffic compared to the competitive schemes under the given energy constraint.