Simple antenna pattern switching and interference-induced multi-hop transmissions for cognitive radio networks

Rocco Di Taranto, Kentaro Nishimori, Petar Popovski, Hiroyuki Yomo, Yasushi Takatori, Ramjee Prasad, Shuji Kubota

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

11 Citations (Scopus)

Abstract

This paper proposes a simple antenna switching and a relay technique for cognitive radios using adaptive array antenna to effectively reduce the interference from the primary system. While the adaptive array antenna can create null towards the direction of primary system, the created antenna pattern can result in non-optimized pattern between cognitive nodes. In order to solve such a problem, this paper first introduces a simple antenna pattern switching. With this technique, each cognitive radio node is equipped with three antennas and each node tries to select the antenna configuration resulting in the best antenna pattern for each link. Furthermore, we propose a combination between the above simple antenna switching and the interference-induced multi-hop transmission where the multi-hop transmission is utilized when a link in the network suffers from the low transmission quality due to the created antenna pattern. Our numerical results show that the proposed techniques can significantly improve the achievable data rate in cognitive networks.

Original languageEnglish
Title of host publication2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks
PublisherIEEE Computer Society
Pages543-546
Number of pages4
ISBN (Print)1424406633, 9781424406630
DOIs
Publication statusPublished - 2007 Jan 1
Externally publishedYes
Event2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySpan 2007 - Dublin, Ireland
Duration: 2007 Apr 172007 Apr 20

Publication series

Name2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks

Conference

Conference2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySpan 2007
CountryIreland
CityDublin
Period07/4/1707/4/20

Keywords

  • Adaptive array
  • Antenna pattern switching
  • Cognitive radio
  • Interference cancellation
  • Multi-hop communication

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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  • Cite this

    Di Taranto, R., Nishimori, K., Popovski, P., Yomo, H., Takatori, Y., Prasad, R., & Kubota, S. (2007). Simple antenna pattern switching and interference-induced multi-hop transmissions for cognitive radio networks. In 2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks (pp. 543-546). [4221539] (2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks). IEEE Computer Society. https://doi.org/10.1109/DYSPAN.2007.77