Paper Info
Title
Optimal Fractional Frequency Reuse and Power Control in the Heterogeneous Wireless Networks.
Abstract
Heterogeneous wireless networks have emerged as a new paradigm to meet the fast growing wireless network capacity and coverage demands. Due to the co-deployment of high power and low power nodes in the same network using the same spectrum, more advanced interference coordination and radio resource management schemes are required than in the traditional cellular network in order to achieve a high network capacity and good user experience. In this paper, we propose an optimal fractional frequency reuse and power control scheme that can effectively coordinate the interference among high power and low power nodes. The scheme can be optimized to maximize the sum of the long term log-scale throughput among all the user equipments (UEs). Towards that end, the Lagrange dual function is first derived for the proposed optimization problem. Gradient descent method is then used to search the optimal solution for the convex dual problem. Due to the strong duality condition, the optimal solution for the dual problem is also the optimal solution for the primal problem. Simulation results show that the proposed scheme can greatly improve the wireless heterogeneous network performance on system capacity and user experience.
Year
DOI
Venue
2013
10.1109/TWC.2013.050313.120160
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
convex optimization,optimization problem,frequency allocation,power control,heterogeneous network,gradient descent method,convex programming,cellular network
Radio resource management,Wireless network,Mathematical optimization,Wireless,Computer science,Power control,Computer network,Cellular network,Throughput,Heterogeneous network,Optimization problem
Journal
Volume
Issue
ISSN
12
6
1536-1276
Citations 
PageRank 
References 
43
2.71
12
Authors
4
Name
Order
Citations
PageRank
Qian Clara Li128219.41
Rose Qingyang Hu21702135.35
Yiran Xu3756.09
Yi Qian41869129.43