A power allocation scheme using non-cooperative game theory in ultra-dense networks

In order to meet the demand of ultra-high-flow communication after 2020, ultra-dense networks (UDN) is considered to become a key technology of 5G. By deploying a large number of access points (AP) in UDN, the networks can achieve extremely high frequency reuse which makes the system capacity in hot spots (offices, subways, etc.) increase hundreds of times. In this paper, we propose a downlink optimal power allocation scheme for UDN networks based on virtual cell (VC) local information. By applying graph theory knowledge, the analysis of interference in system is simplified. We investigate non-cooperative game problems with penalty. In addition, we propose a distributed optimal power control algorithm accordingly. The final simulation results show that the new algorithm has a certain improvement compared with the average power allocation algorithm.

[1]  Choong Seon Hong,et al.  Power Control for Interference Management and QoS Guarantee in Heterogeneous Networks , 2015, IEEE Communications Letters.

[2]  Chengwen Xing,et al.  Dynamic clustering algorithm design for ultra dense small cell networks in 5G , 2015, 2015 10th International Conference on Communications and Networking in China (ChinaCom).

[3]  Limin Xiao,et al.  Joint CoMP and power allocation in ultra dense networks , 2017, 2017 Wireless Telecommunications Symposium (WTS).

[4]  Preben E. Mogensen,et al.  The Inter-Cell Interference Dilemma in Dense Outdoor Small Cell Deployment , 2014, 2014 IEEE 79th Vehicular Technology Conference (VTC Spring).

[5]  Klaus I. Pedersen,et al.  Interference coordination for dense wireless networks , 2015, IEEE Communications Magazine.

[6]  Amitava Ghosh,et al.  Dynamic cell muting for ultra dense indoor small cell deployment scenario , 2015, 2015 IEEE International Conference on Communication Workshop (ICCW).

[7]  Yueming Cai,et al.  Optimal Power Control in Ultra-Dense Small Cell Networks: A Game-Theoretic Approach , 2017, IEEE Transactions on Wireless Communications.

[8]  Gilberto Berardinelli,et al.  Inter-cell interference management using maximum rank planning in 5G small cell networks , 2014, 2014 11th International Symposium on Wireless Communications Systems (ISWCS).

[9]  Amr M. Youssef,et al.  Ultra-Dense Networks: A Survey , 2016, IEEE Communications Surveys & Tutorials.

[10]  Li Zhang,et al.  Downlink Transmission Scheme Based on Virtual Cell Merging in Ultra Dense Networks , 2016, 2016 IEEE 84th Vehicular Technology Conference (VTC-Fall).