Spectral efficiency of wireless networks with multi-antenna base stations and spatially distributed nodes

Siddhartan Govindasamy, Daniel Bliss, David H. Staelin

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

1 Scopus citations

Abstract

We analyze networks with wireless nodes distributed randomly in space, transmitting simultaneously in the same channel to their nearest base-stations using a simple power control algorithm. Base-stations are on a hexagonal grid and have N optimally-phased antennas. We derive the asymptotic mean upstream spectral efficiency (validated by simulation) as a function of N, wireless-node density, base-station separation, and path-loss-exponent which controls signal attenuation with distance. These results indicate that mean per-link spectral efficiency is constant if the number of receive antennas or density of base-stations is increased linearly with wireless node density. They also improve our understanding of systems like city-wide wireless internet deployments and mobile telephony with small cells for which the spatial distribution of nodes causing outof- cell interference is important. The results are also readily extendable to Random Code-Division-Multiple-Access systems with spreading factor N.

Original languageEnglish (US)
Title of host publicationConference Record - Asilomar Conference on Signals, Systems and Computers
Pages1130-1134
Number of pages5
DOIs
Publication statusPublished - 2008
Externally publishedYes
Event2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008 - Pacific Grove, CA, United States
Duration: Oct 26 2008Oct 29 2008

Other

Other2008 42nd Asilomar Conference on Signals, Systems and Computers, ASILOMAR 2008
CountryUnited States
CityPacific Grove, CA
Period10/26/0810/29/08

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ASJC Scopus subject areas

  • Computer Networks and Communications
  • Signal Processing

Cite this

Govindasamy, S., Bliss, D., & Staelin, D. H. (2008). Spectral efficiency of wireless networks with multi-antenna base stations and spatially distributed nodes. In Conference Record - Asilomar Conference on Signals, Systems and Computers (pp. 1130-1134). [5074590] https://doi.org/10.1109/ACSSC.2008.5074590