Energy-aware revenue optimization for cellular networks via device-to-device communication

Wu Y, Wang J, Qian L, Schober R (2015)

Publication Language: English

Publication Type: Conference contribution

Publication year: 2015

Event location: London GB

ISBN: 978-1-4673-6432-4

DOI: 10.1109/ICC.2015.7248633

Abstract

In this paper, we investigate the revenue optimization of a cellular system, which intelligently provides access services to device-to-device users (DUs) by reusing the resource-blocks (RBs) of cellular users (CUs). While charging the DUs for services, the cellular system compensates for the additional power consumption costs of the CUs to meet their required quality of service (QoS), and hence aims at achieving the best tradeoff between charging the DUs and affording the CUs' costs to maximize its own revenue. We formulate this energy-aware revenue optimization problem as a joint RB-reuse and power control problem, which we further decompose into a power control problem for each individual CU-DU pair and a DU-selection problem for selecting appropriate DUs to reuse the CUs' RBs. For each CU-DU pair, we derive the optimal power allocation in closed form and the maximum gain of the cellular system from this pair. Based on the gains of all CU-DU pairs, we then consider the DU-selection problem as maximum weighted matching on a bipartite graph and solve it by using linear relaxation. Numerical results validate our analysis regarding the optimal power allocation for each CU-DU pair and the BS's optimal selection of the DUs to reuse the CUs' RBs such that the BS's revenue is maximized.

Authors with CRIS profile

Jiaheng Wang Lehrstuhl für Digitale Übertragung Robert Schober Lehrstuhl für Digitale Übertragung

Involved external institutions

Macau University of Science and Technology (MUST) / 澳門科技大學 MO Macao (MO) Zhejiang University CN China (CN)

How to cite

APA:

Wu, Y., Wang, J., Qian, L., & Schober, R. (2015). Energy-aware revenue optimization for cellular networks via device-to-device communication. In IEEE (Eds.), Proceedings of the 2015 IEEE International Conference on Communications (ICC). London, GB.

MLA:

Wu, Yuan, et al. "Energy-aware revenue optimization for cellular networks via device-to-device communication." Proceedings of the 2015 IEEE International Conference on Communications (ICC), London Ed. IEEE, 2015.

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