Adaptive network MIMO architecture based on dynamic user-oriented frequency allocation scheme: Part i homogeneous network

Chih-Wen Chang, Chih Yuan Yang, Szu-Lin Su, Yinman Lee

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

2 Citations (Scopus)

Abstract

In this paper, we revisit the frequency allocation scheme (FAS) for the homogeneous cellular networks by taking the non-uniform distribution of users into account. Owing to the non-uniformly distributed user density from sector to sector, the traffic loads become highly unbalanced across whole network. Thus, to satisfy users' requests, the dynamic user-oriented FAS (Duo-FAS) is proposed to allocate different amount of subcarriers to sectors according to the variant user densities. However, the Duo-FAS technique can partially remove the innate benefit of interference avoidance via frequency planning, i.e. the conventional three-sectored cell architecture. That means some extra inter-cell interference (ICI) can be produced by using Duo- FAS. Fortunately, the network multiple-input and multiple-output (MIMO) technique can effectively alleviate the impact of ICI. Thanks to Duo-FAS, the number and positions of the cooperative cells when using the network MIMO technique can be significantly different from the conventional schemes. Thus, properly selecting the cooperative cells becomes a pivotal issue. The key is that for any particular user, the neighboring cells to form a cooperative network MIMO group should be adaptively selected so that the strong ICI can be eliminated. The simulation results demonstrated the higher achievable cell capacity.

Original languageEnglish
Title of host publication2016 IEEE 83rd Vehicular Technology Conference, VTC Spring 2016 - Proceedings
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509016983
DOIs
Publication statusPublished - 2016 Jul 5
Event83rd IEEE Vehicular Technology Conference, VTC Spring 2016 - Nanjing, China
Duration: 2016 May 152016 May 18

Publication series

NameIEEE Vehicular Technology Conference
Volume2016-July
ISSN (Print)1550-2252

Other

Other83rd IEEE Vehicular Technology Conference, VTC Spring 2016
CountryChina
CityNanjing
Period16-05-1516-05-18

All Science Journal Classification (ASJC) codes

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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