Cognitive frequency sharing among primary radio networks for multi-hop communication

Chunyi Song, Hiroyuki Shiba, Shigeru Shimamoto

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

Abstract

In Cognitive Radio (CR), primary users have exclusive privilege to access their licensed channels. Therefore, a transmission failure occurs when one or more primary users access the licensed channel during a transmission by users in secondary radio network (SRN). We define such channel access by primary users as return of primary users. Transmission failure caused by return of primary users may not be neglectable if we consider the bursty nature of source data in large amount of networks, especially for multi-hop communication due to the large transmission duration. Furthermore, existing wireless communication systems are facing challenges on flexibility to bursty dynamic data traffics. Aiming to develop solutions for above tasks, we propose a cognitive frequency sharing (CFS) approach for transmitting packets of primary radio networks (PRNs). Under cooperation of SRN, plural independent PRNs share their idle spectrum resources (usually referred as to spectrum holes) in an opportunistic manner. CFS causes no influence to transmission independence within each PRN. Simulation results verify the effectiveness of CFS in improving both the throughput of PRNs and condition of spectrum holes that are for SRN's use.

Original languageEnglish
Title of host publication3rd International Conference on Communications and Networking in China, ChinaCom 2008
Pages137-141
Number of pages5
DOIs
Publication statusPublished - 2008 Dec 1
Event3rd International Conference on Communications and Networking in China, ChinaCom 2008 - Hangzhou, China
Duration: 2008 Aug 252008 Aug 27

Publication series

Name3rd International Conference on Communications and Networking in China, ChinaCom 2008

Conference

Conference3rd International Conference on Communications and Networking in China, ChinaCom 2008
CountryChina
CityHangzhou
Period08/8/2508/8/27

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Keywords

  • Cognitive frequency sharing
  • Cognitive radio
  • Spectrum hole
  • System flexibility

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Communication

Cite this

Song, C., Shiba, H., & Shimamoto, S. (2008). Cognitive frequency sharing among primary radio networks for multi-hop communication. In 3rd International Conference on Communications and Networking in China, ChinaCom 2008 (pp. 137-141). [4684987] (3rd International Conference on Communications and Networking in China, ChinaCom 2008). https://doi.org/10.1109/CHINACOM.2008.4684987