Maximized achievable rate of SINR-measurement-based spectrum sharing with binary feedback

• Published in: International journal of communication systems Vol. 25; no. 3; pp. 404 - 413
• Main Authors: Wang, Hanho, Ko, Kyunbyoung, Woo, Choongchae
• Format: Journal Article
• Language: English
• Published: Chichester, UK John Wiley & Sons, Ltd 01.03.2012
• Subjects: channel state information; sharing admission probability; signal-to-interference-noise ratio; spectrum sharing
• ISSN: 1074-5351; 1099-1131
• DOI: 10.1002/dac.1269

SUMMARY Motivated by the difficulty in measuring channel state information between heterogeneous primary and secondary systems, we propose a signal‐to‐interference‐noise ratio (SINR)‐based spectrum sharing policy. In the proposed spectrum sharing policy, a secondary user who does not cause SINR outage at the primary receiver is admitted to share the primary user's spectrum. In this article, we analyze the achievable rate of a secondary user and for whom the achievable rate is maximized in the SINR‐constrained spectrum sharing. The maximized achievable rate is determined by the ratio of the distance between the secondary transmitter and the primary receiver to the distance between the secondary transmitter and receiver, and it is proportional to the distance ratio. In conclusion, secondary links with large distance ratio can support high data rate applications so long as SINR constraint of the primary user is guaranteed. Copyright © 2011 John Wiley & Sons, Ltd. Motivated by the difficulty in measuring channel state information between heterogeneous primary and secondary systems, we propose a signal‐to‐interference‐noise ratio(SINR)‐based spectrum sharing policy. In the proposed spectrum sharing policy, asecondary user who does not cause SINR outage at the primary receiver is admitted to share the primary users spectrum. In this article, we analyze the achievable rate of a secondary user and for whom the achievable rate is maximized in the SINR‐constrained spectrum 17sharing. The maximized achievable rate is determined by the ratio of the distance between the secondary transmitter and the primary receiver to the distance between these condary transmitter and receiver, and it is proportional to the distance ratio. In conclusion, secondary links with large distance ratio can support high data rate applications so long as SINR constrain to of the primary user is guaranteed. Copyright © 2011 John Wiley & Sons, Ltd.