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Wei Zhang
Hebei University of Engineering

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A Study of Cognitive Technology OFDM System and Frame Structure Hua Hou; Wei Zhang
Indonesian Journal of Electrical Engineering and Computer Science Vol 12, No 7: July 2014
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v12.i7.pp5514-5521

Abstract

For mobile communication system with multi-service of multiple users, spectrum utilization rate is low and user's QoS requirements need to be improved. The paper proposed a cross-layer based on cognitive radio technology and OFDM technology model and designed the core technology of this frame structure model  such as service division, spectrum sensing and spectrum aggregation in detail. Comprehensive judgment through the service needs of different users, and the spectrum holes judgment, not only meet different user’s QoS, but also improve spectrum utilization and increase the system suitability. Finally, the simulation analysis of the model’s performance shows that the model can not only reasonable use of the spectrum holes, and better meet the user’s QoS requirements.
Co-Authors Hua Hou