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Algorithms 2016, 9(2), 29; doi:10.3390/a9020029

An Improved Dynamic Joint Resource Allocation Algorithm Based on SFR

,
,
and
*
College of Information and Communication Engineering, Harbin Engineering University, Harbin 150001, China
These authors contributed equally to this work.
*
Author to whom correspondence should be addressed.
Academic Editor: Pierre Leone
Received: 25 January 2016 / Revised: 12 April 2016 / Accepted: 15 April 2016 / Published: 22 April 2016
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Abstract

Inter-cell interference (ICI) is the main factor affecting system capacity and spectral efficiency. Effective spectrum resource management is an important and challenging issue for the design of wireless communication systems. The soft frequency reuse (SFR) is regarded as an interesting approach to significantly eliminate ICI. However, the allocation of resource is fixed prior to system deployment in static SFR. To overcome this drawback, this paper adopts a distributed method and proposes an improved dynamic joint resource allocation algorithm (DJRA). The improved scheme adaptively adjusts resource allocation based on the real-time user distribution. DJRA first detects the edge-user distribution vector to determine the optimal scheme, which guarantees that all the users have available resources and the number of iterations is reduced. Then, the DJRA maximizes the throughput for each cell via optimizing resource and power allocation. Due to further eliminate interference, the sector partition method is used in the center region and in view of fairness among users, the novel approach adds the proportional fair algorithm at the end of DJRA. Simulation results show that the proposed algorithm outperforms previous approaches for improving the system capacity and cell edge user performance. View Full-Text
Keywords: joint resource allocation; soft frequency reuse; inter-cell interference; LTE; interior sector partition joint resource allocation; soft frequency reuse; inter-cell interference; LTE; interior sector partition
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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Li, Y.; Diao, X.; Dong, G.; Ye, F. An Improved Dynamic Joint Resource Allocation Algorithm Based on SFR. Algorithms 2016, 9, 29.

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