Non-Cooperative Cross-Channel Gain Estimation Using Full-Duplex Amplify-and-Forward Relaying in Cognitive Radio Networks

Huang, B., Zhao, G. , Li, L., Zhou, X. and Chen, Z. (2016) Non-Cooperative Cross-Channel Gain Estimation Using Full-Duplex Amplify-and-Forward Relaying in Cognitive Radio Networks. In: 2016 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Shanghai, China, 20-25 Mar 2016, pp. 3636-3640. ISBN 9781479999880 (doi: 10.1109/ICASSP.2016.7472355)

Abstract

In this paper, we propose a new estimation method to obtain the cross-channel gain, which avoids the severe interference to the primary receiver (PR) in existing relay-assisted estimation methods. In our method, we let the cognitive transmitter add a time delay when it conducts the full-duplex amplify-and-forward relaying. This forces the time-difference-of-arrival (TDOA) between the direct and relay signals to be large enough rather than randomly large or small. Then we develop our estimation method only in the large TDOA case and precisely control the interference to the PR. Simulation results indicate that the proposed method can significantly reduce the interference to the PR.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Zhao, Dr Guodong
• Authors: Huang, B., Zhao, G., Li, L., Zhou, X., and Chen, Z.
• College/School: College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
• ISSN: 2379-190X
• ISBN: 9781479999880