A virtualized resource management scheme for heterogeneous cellular networks

Yaoyuan Zhang, Liqiang Zhao, Nan Li, Guopeng Zhang, Hsiao Hwa Chen

Research output: Contribution to journalArticle

Abstract

Because of random deployment patterns of femtocells, interference scenarios in a heterogeneous cellular network can be very complicated because of its changing network topology. Especially when each eNodeB occupies a fixed bandwidth, interference management becomes much more difficult. The benefit of dynamic management for local resource optimation is limited. Recently, resource virtualization has been proposed as a dynamic resource management scheme to optimize network performance. In fact, resource virtualization is viewed as a more flexible model, in which mobile network service providers can control physical resources in a global scope. This paper presents a joint resource virtualization and allocation scheme for its applications in heterogeneous macro-femto-cellular networks. The proposed scheme involves two major processes. First, it virtualizes physical resources as logical resources. Second, it carries out logical resource allocation optimization globally and aggregates logical and physical resources for resource allocation. The proposed scheme takes into account spectrum reuse and frequency domain interference jointly in order to achieve a high spectral efficiency and provide rate-on-demand services to all users. Simulation results demonstrate the effectiveness of the proposed scheme.

Original languageEnglish
Pages (from-to)3163-3174
Number of pages12
JournalWireless Communications and Mobile Computing
Volume16
Issue number17
DOIs
Publication statusPublished - 2016 Dec 10

All Science Journal Classification (ASJC) codes

  • Information Systems
  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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