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http://dx.doi.org/10.7840/kics.2014.39B.10.664

Study on Power Allocation for Heterogeneous Networks Based on Asynchronous TDD  

Min, Kyungsik (School of Electrical and Electronic Engineering, Yonsei University)
Kim, Taehyoung (School of Electrical and Electronic Engineering, Yonsei University)
Park, Sangjoon (School of Electrical and Electronic Engineering, Yonsei University)
Choi, Sooyong (School of Electrical and Electronic Engineering, Yonsei University)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.39B, no.10, 2014 , pp. 664-673 More about this Journal
Abstract
This paper analyzes the power allocation scheme to maximize the sum-rate for heterogeneous networks based on asynchronous time division duplex. We consider heterogeneous networks where a small cell exists in the macro cell coverage and the small cell and the macro cell share the same time-frequency resources. We formulate the optimization problem which maximizes the sum-rate of the heterogeneous network subject to the target signal-to-interference-plus-noise ratio. We analyze the feasible region in order for the optimal solution to exists and the optimal power allocation scheme for maximizing the sum-rate. Simulation results show that the proposed power allocation schemes outperform the maximum power transmission scheme.
Keywords
Small cell; HetNets; Asynchronous TDD; Power allocation; Convex optimization;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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