TY - GEN
T1 - Energy-efficient power control with finite discrete inputs under quality of service constraints
AU - Ozcan, Gozde
AU - Gursoy, M. Cenk
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/4/26
Y1 - 2016/4/26
N2 - This paper presents an energy-efficient optimal power control policy with finite discrete inputs in the presence of statistical quality of service (QoS) limitations. In particular, an optimization problem is formulated to maximize the energy efficiency (EE) of the system, which is defined as the ratio of the effective capacity achieved with finite discrete inputs to the total power consumption. The circuit power consumption is explicitly considered in the total power expenditure. Subsequently, the optimal power control is derived using fractional programming. The resulting optimal power control strategy is further analyzed in two limiting cases, namely, the extremely stringent QoS constraints and looser QoS constraints. Through numerical results, the EE attained with the proposed optimal power control policy and constant power scheme is compared. Also, the effects of QoS constraints and signaling distribution on the maximum achievable EE are evaluated.
AB - This paper presents an energy-efficient optimal power control policy with finite discrete inputs in the presence of statistical quality of service (QoS) limitations. In particular, an optimization problem is formulated to maximize the energy efficiency (EE) of the system, which is defined as the ratio of the effective capacity achieved with finite discrete inputs to the total power consumption. The circuit power consumption is explicitly considered in the total power expenditure. Subsequently, the optimal power control is derived using fractional programming. The resulting optimal power control strategy is further analyzed in two limiting cases, namely, the extremely stringent QoS constraints and looser QoS constraints. Through numerical results, the EE attained with the proposed optimal power control policy and constant power scheme is compared. Also, the effects of QoS constraints and signaling distribution on the maximum achievable EE are evaluated.
KW - Effective capacity
KW - Energy efficiency
KW - Fading channel
KW - Finite discrete inputs
KW - MMSE
KW - Mutual information
KW - Optimal power control
KW - QoS constraints
UR - http://www.scopus.com/inward/record.url?scp=84992323949&partnerID=8YFLogxK
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U2 - 10.1109/CISS.2016.7460480
DO - 10.1109/CISS.2016.7460480
M3 - Conference contribution
AN - SCOPUS:84992323949
T3 - 2016 50th Annual Conference on Information Systems and Sciences, CISS 2016
SP - 76
EP - 81
BT - 2016 50th Annual Conference on Information Systems and Sciences, CISS 2016
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 50th Annual Conference on Information Systems and Sciences, CISS 2016
Y2 - 16 March 2016 through 18 March 2016
ER -