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Energy Efficiency Optimization for multiuser OFDM-based Cognitive Heterogeneous networks
  • KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Energy Efficiency Optimization for multiuser OFDM-based Cognitive Heterogeneous networks

Vol. 13, No. 6, June 29, 2019
10.3837/tiis.2019.06.006, Download Paper (Free):

Abstract

Reducing the interference to the licensed mobile users and obtaining the energy efficiency are key issues in cognitive heterogeneous networks. A corresponding rate loss constraint is proposed to be used for the sensing-based spectrum sharing (SBSS) model in cognitive heterogeneous networks in this paper. Resource allocation optimization strategy is designed for the maximum energy efficiency under the proposed interference constraint together with average transmission power constraint. An efficiency algorithm is studied to maximize energy efficiency due to the nonconvex optimal problem. Furthermore, the relationship between the proposed protection criterion and the conventional interference constraint strategy under imperfect sensing condition for the SBSS model is also investigated, and we found that the conventional interference threshold can be regarded as the upper bound of the maximum rate loss that the primary user could tolerate. Simulation results have shown the effectiveness of the proposed protection criterion overcome the conventional interference power constraint.


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Cite this article

[IEEE Style]
B. Ning, A. Zhang, W. Hao, J. Li and S. Yang, "Energy Efficiency Optimization for multiuser OFDM-based Cognitive Heterogeneous networks," KSII Transactions on Internet and Information Systems, vol. 13, no. 6, pp. 2873-2892, 2019. DOI: 10.3837/tiis.2019.06.006.

[ACM Style]
Bing Ning, Aihua Zhang, Wanming Hao, Jianjun Li, and Shouyi Yang. 2019. Energy Efficiency Optimization for multiuser OFDM-based Cognitive Heterogeneous networks. KSII Transactions on Internet and Information Systems, 13, 6, (2019), 2873-2892. DOI: 10.3837/tiis.2019.06.006.