Joint design of density of access points and partially overlapped channel assignment for capacity optimization in wireless networks

Wei Zhao, Zubair Fadlullah, Hiroki Nishiyama, Nei Kato, Kiyoshi Hamaguchi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)

Abstract

The design of a wireless network is often critically affected by issues such as determining the optimal density of Access Points (APs) and optimal channel assignment by exploiting partially overlapped channels (POCs) for significantly improving the network performance in terms of maximizing the overall network capacity. Contemporary research works have traditionally dealt with these two problems in an isolated manner though they should be considered within the same problem formulation. Furthermore, though deployment of additional APs can improve the network capacity in case there are a few APs in a given area, the APs cannot be indefinitely added to the wireless network. This means that there is an upper bound to the network capacity maximization with respect to the number of APs. In fact, the network capacity starts to dramatically decrease when the number of deployed APs becomes excessive. This performance decrease can be accredited to the substantial interference among the high number of deployed APs. A more fundamental insight into the joint issue and its affect on capacity, in signal to interference plus noise ratio (SINR) is required. In order to address this challenge, in this paper, we propose an approach to jointly optimize the number of APs and POCs assignment. Our proposal derives the existence of the upper bound of the density of APs with POCs, and models the POC assignment to the deployed APs from a novel perspective. Computer-based simulations are conducted to demonstrate the effectiveness of our proposal.

Original languageEnglish
Title of host publication2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781479973392
DOIs
Publication statusPublished - 2014 Dec 18
Event2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014 - Hefei, China
Duration: 2014 Oct 232014 Oct 25

Publication series

Name2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014

Other

Other2014 6th International Conference on Wireless Communications and Signal Processing, WCSP 2014
Country/TerritoryChina
CityHefei
Period14/10/2314/10/25

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

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