Downlink Power Control in Two-tier OFDMA Femtocell Networks with Firefly Algorithm

被引：0
|
作者：
Xia, Hailun [1 ]
Li, Sainan [1 ]
Zeng, Zhimin [1 ]
机构：
[1] Beijing Univ Posts & Telecommun, Sch Informat & Commun Engn, Beijing Key Lab Network Syst Architecture & Conve, Beijing 100876, Peoples R China
来源：
2013 IEEE INTERNATIONAL CONFERENCE ON COMMUNICATIONS WORKSHOPS (IEEE ICC) | 2013年
基金：
中国国家自然科学基金;
关键词：
OFDMA femtocell; power control; interference; two-tier; firefly Algorithm; utility function;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
To alleviate the cross-tier interference in two-tier Orthogonal Frequency Division Multiple Access (OFDMA) femtocell networks, this article put forward a distributed utility-based downlink power control algorithm. We firstly modeled the objective of power control with utility functions for macrocell and femtocell based on the factor of Area Spectral Efficiency (ASE). Then we developed a power control algorithm with Firefly Algorithm (FA) to find the optimal power settings in iteration procedure which can maximize the value of utility function. The simulation results show that the proposed algorithm can improve the total throughput and the throughput of femto users with minor impact on macro users.
引用
收藏
页码：1123 / 1128
页数：6
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