Dynamic spectrum management in green cognitive radio cellular networks

Abstract
In this paper, we propose a new cellular network operation scheme fulfilling the 5G requirements related to spectrum management and green communications. We focus on cognitive radio cellular networks in which both the primary network (PN) and the secondary network (SN) are maximizing their operational profits. The PN and the SN are required to respect a CO emissions threshold by switching off one or more lightly loaded base stations (BSs). In addition, the PN accepts to cooperate with the SN by leasing its spectrum in the cells where the PN is turned off. In return, the corresponding SN BSs host the PN users and impose extra roaming fees to the PN. We propose a low-complexity algorithm that maximizes the profit per CO emissions metric while switching on/off the BSs. In the simulations, we show that our proposed algorithm achieves performances close to the exhaustive search method. In addition, we find that the roaming price is a key parameter that affects both PN and SN profits.

Citation
Sboui L, Ghazzai H, Rezki Z, Alouini M-S (2017) Dynamic spectrum management in green cognitive radio cellular networks. 2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC). Available: http://dx.doi.org/10.1109/PIMRC.2017.8292271.

Publisher
Institute of Electrical and Electronics Engineers (IEEE)

Journal
2017 IEEE 28th Annual International Symposium on Personal, Indoor, and Mobile Radio Communications (PIMRC)

Conference/Event Name
28th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2017

DOI
10.1109/PIMRC.2017.8292271

Additional Links
https://ieeexplore.ieee.org/document/8292271/

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