Secondary Data Transmissions with Two-Way Relay in Cognitive Radio Networks

Abstract:

For improving the spectrum hole utilization in cognitive radio networks, two-way relaying is used in this paper to assist two secondary users in exchanging information. The 2-step and 3-step two-way relaying models are respectively discussed with imperfect spectrum sensing. Moreover, the closed-form expressions of outage probability for the two models are derived with a primary user protection constraint. Simulation shows that 3-step model outperforms 2-step in terms of the outage performance.

• Periodical: Applied Mechanics and Materials (Volumes 336-338)
• Pages: 1650-1655
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.336-338.1650
• Online since: July 2013
• Authors: Yuan Gao, Chang Ping Zhu, Yi Bin Tamg
• Keywords: Cognitive Radio Network, Outage Probability, Secondary Data Transmissions, Spectrum Sensing, Two-Way Relay

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