Segment-Based Channel Assignment in Cognitive Radio Ad Hoc Networks

Kaigui Bian; Jung-Min Park

2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications

Research Article

Segment-Based Channel Assignment in Cognitive Radio Ad Hoc Networks

Cite: BibTeX Plain Text

@INPROCEEDINGS{10.1109/CROWNCOM.2007.4549819,
    author={Kaigui Bian and Jung-Min Park},
    title={Segment-Based Channel Assignment in Cognitive Radio Ad Hoc Networks},
    proceedings={2nd International ICST Conference on Cognitive Radio Oriented Wireless Networks and Communications},
    publisher={IEEE},
    proceedings_a={CROWNCOM},
    year={2008},
    month={6},
    keywords={Ad hoc networks  Chromium  Cognitive radio  Computer security  Delay  FCC  Information security  Radio spectrum management  Space technology  White spaces},
    doi={10.1109/CROWNCOM.2007.4549819}
}

Kaigui Bian
Jung-Min Park
Year: 2008
Segment-Based Channel Assignment in Cognitive Radio Ad Hoc Networks
CROWNCOM
IEEE
DOI: 10.1109/CROWNCOM.2007.4549819

Kaigui Bian¹^,*, Jung-Min Park¹^,*

1: ARIAS (Advanced Research in Information Assurance and Security) Lab Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University

*Contact email: kgbian@vt.edu, jungmin@vt.edu

Abstract

In the opportunistic spectrum sharing (OSS) paradigm, unlicensed users (a.k.a. secondary users) “opportunistically” operate in fallow licensed spectrum on a non-interference basis to licensed users (a.k.a. primary users). Each secondary user is equipped with a cognitive radio (CR) that has the capability to selectively operate in fallow licensed bands. In the OSS paradigm, the temporal and spatial spectrum variability caused by the primary users’ spectrum utilization adds another dimension of complexity to the problem of channel assignment. Because existing channel assignment approaches (which were originally designed for conventional wireless networks)—such as link-based and flowbased approaches—do not consider spectrum variability, they do not offer the best trade-off in terms of complexity and performance. In this paper, we investigate the channel assignment problem in single radio interface, CR ad hoc networks. We present a novel channel assignment scheme that assigns channels at the granularity of segments. The proposed scheme is significantly simpler than existing approaches, and offers several practical advantages. Using simulations results, we show that the proposed segment-based channel assignment strategy outperforms link-based channel assignment under realistic network conditions.

Keywords: Ad hoc networks Chromium Cognitive radio Computer security Delay FCC Information security Radio spectrum management Space technology White spaces

Published: 2008-06-24
Publisher: IEEE
Modified: 2011-08-01

: http://dx.doi.org/10.1109/CROWNCOM.2007.4549819