The capacity of cognitive ad-hoc networks with carrier sensing errors

Seungmo Kim, Tahjoon Park, Wan Choi, Youngnam Han

Research output: Contribution to book or proceedingConference articlepeer-review

1 Scopus citations

Abstract

We analyze the capacity of cognitive ad-hoc networks under the effects of sensing errors: false alarm and missed detection. We present an ad-hoc network model overlaid on a primary system from which a cognitive node exploits spectrum holes for retransmissions. We derive per-link capacity, the indicator of the network's capacity, by considering statistics of the primary users' (PUs) channel occupancy and sensing errors. Our analysis shows that the capacity scaling law is kept unchanged, O(1/√(log n)) by the number of nodes n, even after sensing errors are introduced. It also shows how the capacity depends on the PUs' channel occupancy and sensing errors.
Original languageEnglish
Title of host publicationProceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011
Pages380-384
Number of pages5
DOIs
StatePublished - 2011
Event2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011 - Osaka, Japan
Duration: Jun 1 2011Jun 3 2011

Publication series

NameProceedings of the 2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011

Conference

Conference2011 6th International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications, CROWNCOM 2011
Country/TerritoryJapan
CityOsaka
Period06/1/1106/3/11

Scopus Subject Areas

  • Computer Networks and Communications
  • Communication

Keywords

  • Ad-hoc
  • capacity
  • sensing errors

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