Client selection for coordinated IEEE 802.11ac multi-user MIMO-enabled access points

Seongyong Jeong, Heejun Roh, Wonjun Lee

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

1 Citation (Scopus)

Abstract

Although downlink multi-user MIMO (MU-MIMO) technology is included in the IEEE 802.11ac Standard, multi-cell interference in IEEE 802.11ac MU-MIMO networks degrades expected performance gain from the technology due to unplanned deployment of access points. To this end, recent research efforts envision that a central controller coordinates a set of APs to alleviate the multi-cell interference. However, to fully exploit the benefits of the coordinated access points with MU-MIMO, it is essential that clients should be carefully selected to maximize aggregate throughput. While an exhaustive search gives the optimal solution, its computationally infeasibility in large size networks requires another solution. Therefore, in this paper, we formulate a client selection problem for coordinated access points and suggest a polynomial time algorithm. Evaluation results show that our algorithm achieves about 98 % of the optimal aggregate throughput with a moderate computational overhead.

Original languageEnglish
Title of host publicationInternational Conference on ICT Convergence 2015: Innovations Toward the IoT, 5G, and Smart Media Era, ICTC 2015
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages548-553
Number of pages6
ISBN (Print)9781467371155
DOIs
Publication statusPublished - 2015 Dec 11
Event6th International Conference on Information and Communication Technology Convergence, ICTC 2015 - Jeju Island, Korea, Republic of
Duration: 2015 Oct 282015 Oct 30

Other

Other6th International Conference on Information and Communication Technology Convergence, ICTC 2015
CountryKorea, Republic of
CityJeju Island
Period15/10/2815/10/30

Keywords

  • Coordinated access points
  • Multi-user MIMO
  • The Hungarian algorithm

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Information Systems

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