Document Type

Article

Journal/Book Title/Conference

IEEE Access

Volume

5

Publisher

Institute of Electrical and Electronics Engineers Inc.

Publication Date

2-6-2017

First Page

1911

Last Page

1924

DOI

10.1109/ACCESS.2017.2653798

Abstract

Ultra-dense network (UDN) is considered as a promising technology in 5G wireless networks. In an UDN network, dynamic traffic patterns can lead to a high computational complexity and an excessive communications overhead with traditional resource allocation schemes. In this paper, a new resource allocation scheme presenting a low computational overhead and a low subband handoff rate in a dynamic ultra-dense heterogeneous network is presented. The scheme first defines a new interference estimation method that constructs network interference state map, based on which a radio resource allocation scheme is proposed. The resource allocation problem is a MAX-K cut problem and can be solved through a graph- theoretical approach. System level simulations reveal that the proposed scheme decreases the subband handoff rate by 30% with less than 3.2% network throughput degradation.

Comments

http://ieeexplore.ieee.org/document/7842625/

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