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ucin1273173530.pdf (305.4 KB)
ETD Abstract Container
Abstract Header
Performance Analysis of Opportunistc Spectrum Access on Cognitive Radio
Author Info
Xie, Qing Yan
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273173530
Abstract Details
Year and Degree
2010, MS, University of Cincinnati, Engineering : Computer Science.
Abstract
Nowadays, the critical shortage of spectrum resource and underutilization of licensed spectrum urge people to discover new approaches to efficiently utilize spectrum. Opportunistic spectrum access (OSA) has been considered to be a good approach to exploit spectral resources and improve licensed spectral utilization. We derive an idea from this approach and design a system of primary network overlaid with secondary network, where we use the centralized network protocol in primary network and ad hoc medium access control (MAC) protocol (IEEE 802.11 Distributed Coordination Function) in secondary network. The users in secondary network occupy the idle spectrum left by users in primary network in a non-intrusive manner. The secondary users’ activities do not interfere with those of primary users. We investigate the throughput of our system and evaluate the performance by different metrics in our simulation. The obtained results show that channel utilization rate can be improved by about 50% compared with traditional sharing spectrum model in single network. We also observe that there is tradeoff between the blocked rate of primary network and network quality. We can control this tradeoff and meet the requirement of networks and users by threshold value.
Committee
George Purdy, PhD (Committee Chair)
Anca Ralescu, PhD (Committee Member)
Qing An Zeng, PhD (Committee Member)
Pages
78 p.
Subject Headings
Computer Science
Keywords
opportunistic spectrum access
;
Cognitive radio
;
ad hoc network
;
centralized network
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Citations
Xie, Q. Y. (2010).
Performance Analysis of Opportunistc Spectrum Access on Cognitive Radio
[Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273173530
APA Style (7th edition)
Xie, Qing Yan.
Performance Analysis of Opportunistc Spectrum Access on Cognitive Radio.
2010. University of Cincinnati, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273173530.
MLA Style (8th edition)
Xie, Qing Yan. "Performance Analysis of Opportunistc Spectrum Access on Cognitive Radio." Master's thesis, University of Cincinnati, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1273173530
Chicago Manual of Style (17th edition)
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Document number:
ucin1273173530
Download Count:
361
Copyright Info
© 2009, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.