Delay-Aware Uplink User Association and Power Control in Heterogeneous Cellular Networks

被引：8

作者：

Chen, Zheng ^{[1
]}

Qiu, Ling ^{[1
]}

Jin, Yinghao ^{[1
]}

Liang, Xiaowen ^{[1
]}

机构：

[1] Univ Sci & Technol China, Sch Informat Sci & Technol, Chinese Acad Sci, Key Lab Wireless Opt Commun, Hefei 230027, Peoples R China

来源：

IEEE WIRELESS COMMUNICATIONS LETTERS | 2015年 / 4卷 / 06期

关键词：

Delay-aware; user association; power control; energy efficiency; heterogeneous cellular networks; ALLOCATION;

D O I：

10.1109/LWC.2015.2480073

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

In this letter, the delay-aware uplink user association problem in conjunction with power control is considered for energy efficiency in heterogeneous cellular networks. We aim at minimizing the energy consumption of user terminals under the delay constraints. Due to the mutual interference and the coupled queue dynamics, the problem is NP-hard and thus is difficult to solve. To overcome this issue, we first analyze the optimal solution for single user case by assuming the transmit power of others are unchanged, based on which we then propose a heuristic algorithm for the formulated problem. Simulation results demonstrate the efficiency of our proposed schemes.

引用

页码：661 / 664

页数：4

共 9 条

[1] Energy-Aware Competitive Power Allocation for Heterogeneous Networks Under QoS Constraints [J].