A novel spectrum sharing scheme using relay station with intelligent reception

Authors:
Jaehwan Kim;Junkyu Lee;Joonhyuk Kang
Affiliations:
School of Engineering, Information and Communications University(ICU), Daejeon, Korea;School of Engineering, Information and Communications University(ICU), Daejeon, Korea;School of Engineering, Information and Communications University(ICU), Daejeon, Korea
Venue:
KES'06 Proceedings of the 10th international conference on Knowledge-Based Intelligent Information and Engineering Systems - Volume Part III
Year:
2006

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Abstract

In this paper, we propose a new spectrum sharing method using relay station with intelligent reception at the receiver. The relay station retransmits primary signal to destination which receives combined primary and secondary signals simultaneously. Then, the receiver detects the secondary signal by cancelling the primary signal out with the aid of the relayed signal. Simulation results demonstrate that the proposed method guarantees reliable communication for secondary service between some pairs of users, where there is another licensed primary service in the same frequency band.