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

研究成果: Conference contribution

11 被引用数 (Scopus)

抄録

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.

本文言語English
ホスト出版物のタイトル2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks
出版社IEEE Computer Society
ページ543-546
ページ数4
ISBN(印刷版)1424406633, 9781424406630
DOI
出版ステータスPublished - 2007 1月 1
外部発表はい
イベント2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, DySpan 2007 - Dublin, Ireland
継続期間: 2007 4月 172007 4月 20

出版物シリーズ

名前2007 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
国/地域Ireland
CityDublin
Period07/4/1707/4/20

ASJC Scopus subject areas

  • コンピュータ ネットワークおよび通信
  • 電子工学および電気工学

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