Delay-bounded power-efficient packet scheduling for uplink systems of LTE

Authors:
Zhenwei Li;Changchuan Yin;Guangxin Yue
Affiliations:
School of Information and Communication Engineering, Beijing University of Posts and Communications, Beijing, China;School of Information and Communication Engineering, Beijing University of Posts and Communications, Beijing, China;School of Information and Communication Engineering, Beijing University of Posts and Communications, Beijing, China
Venue:
WiCOM'09 Proceedings of the 5th International Conference on Wireless communications, networking and mobile computing
Year:
2009

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Abstract

In this paper, we study minimal power transmission for uplink systems of LTE with constraints on mean queuing delay. Power consumption is important concern for multimedia services of mobile station of LTE .The power minimizing scheduler adapts power and rate of transmission based on the queue and channel state. Our extensive simulations show that small increases in average delay can lead to substantial savings in transmission power, thereby providing another avenue for mobile devices to save on battery power. We propose a low-complexity scheduler that has near-optimal performance.