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Optimal Transmission Strategies for Dynamic Spectrum Access in Cognitive Radio Networks
December 2009 (vol. 8 no. 12)
pp. 1636-1648
ASCII Text
x 
 
Senhua Huang, Xin Liu, Zhi Ding, "Optimal Transmission Strategies for Dynamic Spectrum Access in Cognitive Radio Networks," IEEE Transactions on Mobile Computing, vol. 8, no. 12, pp. 1636-1648, December, 2009.
 
 
BibTex
x
 
@article{ 10.1109/TMC.2009.84,
author = {Senhua Huang and Xin Liu and Zhi Ding},
title = {Optimal Transmission Strategies for Dynamic Spectrum Access in Cognitive Radio Networks},
journal ={IEEE Transactions on Mobile Computing},
volume = {8},
number = {12},
issn = {1536-1233},
year = {2009},
pages = {1636-1648},
doi = {http://doi.ieeecomputersociety.org/10.1109/TMC.2009.84},
publisher = {IEEE Computer Society},
address = {Los Alamitos, CA, USA},
}
 
 
RefWorks Procite/RefMan/Endnote
x 
 
TY - JOUR
JO - IEEE Transactions on Mobile Computing
TI - Optimal Transmission Strategies for Dynamic Spectrum Access in Cognitive Radio Networks
IS - 12
SN - 1536-1233
SP1636
EP1648
EPD - 1636-1648
A1 - Senhua Huang,
A1 - Xin Liu,
A1 - Zhi Ding,
PY - 2009
KW - Wireless communication
KW - cognitive radio
KW - dynamic spectrum access
KW - optimization.
VL - 8
JA - IEEE Transactions on Mobile Computing
ER -
 
Senhua Huang, University of California, Davis, Davis
Xin Liu, University of California, Davis, Davis
Zhi Ding, University of California, Davis, Davis
Cognitive radio offers a promising technology to mitigate spectrum shortage in wireless communications. It enables secondary users (SUs) to opportunistically access low-occupancy primary spectral bands as long as their negative effect on the primary user (PU) access is constrained. This PU protection requirement is particularly challenging for multiple SUs over a wide geographical area. In this paper, we study the fundamental performance limit on the throughput of cognitive radio networks under the PU packet collision constraint. With perfect sensing, we develop an optimum spectrum access strategy under generic PU traffic patterns. Without perfect sensing, we quantify the impact of missed detection and false alarm, and propose a modified threshold-based spectrum access strategy that achieves close-to-optimal performance. Moreover, we develop and evaluate a distributed access scheme that enables multiple SUs to collectively protect the PU while adapting to behavioral changes in PU usage patterns. Our results provide useful insight on the trade-off between the protection of the primary user and the throughput performance of cognitive radios.

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Index Terms:
Wireless communication, cognitive radio, dynamic spectrum access, optimization.
Citation:
Senhua Huang, Xin Liu, Zhi Ding, "Optimal Transmission Strategies for Dynamic Spectrum Access in Cognitive Radio Networks," IEEE Transactions on Mobile Computing, vol. 8, no. 12, pp. 1636-1648, Dec. 2009, doi:10.1109/TMC.2009.84
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