DocumentCode :
1533465
Title :
Quiet Period (QP) Scheduling Across Heterogeneous Dynamic Spectrum Access (DSA)-Based Systems
Author :
Hsieh, Y.S. ; Wang, K.C. ; Chou, Chun-Ting ; Hsu, T.Y. ; Tsai, Tu-I ; Chen, Y.S.
Author_Institution :
National Taiwan University, Taipei, Taiwan
Volume :
11
Issue :
8
fYear :
2012
fDate :
8/1/2012 12:00:00 AM
Firstpage :
2796
Lastpage :
2805
Abstract :
Dynamic spectrum access (DSA) is a promising technology to improve spectrum utilization. One key issue in DSA is the protection of primary devices from interference caused by secondary devices. In this paper, we discuss this issue in the context of spectrum sensing. Sensing problems resulting from collocated sensing and non-sensing secondary systems — together referred to as heterogeneous DSA systems — are identified and a novel quiet period (QP) scheduling algorithm is proposed. The algorithm guarantees a sensing secondary system to detect returning primary devices in bounded time, without any communication or synchronization with collocated non-sensing secondary systems. We prove the guarantee via mathematical induction and analyze the performance. The algorithm is implemented in a universal software radio peripheral (USRP)-based test bed to demonstrate its feasibility. The results show that our solution is applicable to heterogeneous IEEE 802.22 wireless regional area networks (WRANs), ECMA-392 wireless personal area network (WPANs), and even the future IEEE 802.11af wireless local area networks (WLANs) in the UHF TV bands.
Keywords :
Digital video broadcasting; FCC; Feature extraction; Schedules; Sensors; Standards; TV; Spectrum sensing; dynamic spectrum access; heterogeneous networks; wireless networks;
fLanguage :
English
Journal_Title :
Wireless Communications, IEEE Transactions on
Publisher :
ieee
ISSN :
1536-1276
Type :
jour
DOI :
10.1109/TWC.2012.060412.110782
Filename :
6213032
Link To Document :
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