COPA: CoOperative Power Allocation for interfering wireless networks

Georgios Nikolaidis, Mark Handley, Kyle Jamieson, Brad Karp

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

6 Scopus citations

Abstract

As 802.11 wireless networks proliferate, interference becomes increasingly severe, particularly in dense, urban environments. These networks are usually operated by different users (e.g., tenants in apartments). In this paper, we develop techniques for mitigating interference between such loosely cooperating 802.11 MIMO APs and clients, which do not share a high-speed wired backplane or central controller. We propose CoOperative Power Allocation (COPA), an approach to concurrent wireless medium access that combines fine-grained, per-subcarrier power allocation, nulling, and multi-stream transmission to claim capacity that statusquo approaches cannot. Jointly turning these knobs allows COPA to allocate subcarriers to senders partially, rather than all-or-nothing, and to embrace a measure of interference when doing so increases capacity.

Original languageEnglish (US)
Title of host publicationProceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015
PublisherAssociation for Computing Machinery, Inc
ISBN (Electronic)9781450334129
DOIs
StatePublished - Dec 1 2015
Event11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015 - Heidelberg, Germany
Duration: Dec 1 2015Dec 4 2015

Publication series

NameProceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015

Other

Other11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015
CountryGermany
CityHeidelberg
Period12/1/1512/4/15

All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering
  • Computer Networks and Communications

Keywords

  • Interference
  • MIMO
  • Nulling
  • OFDM
  • Power Allocation

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  • Cite this

    Nikolaidis, G., Handley, M., Jamieson, K., & Karp, B. (2015). COPA: CoOperative Power Allocation for interfering wireless networks. In Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015 [2836103] (Proceedings of the 11th ACM Conference on Emerging Networking Experiments and Technologies, CoNEXT 2015). Association for Computing Machinery, Inc. https://doi.org/10.1145/2716281.2836103