Shaping Spectral Leakage: A Novel Low-Complexity Transceiver Architecture for Cognitive Radio

In this article, the authors propose a transceiver architecture based on orthogonal frequency-division multiplexing (OFDM) with transmit and receive windowing to reduce spectral leakage and reject adjacent channel interference (ACI). The transceiver enables the utilization of unused subbands in a fragmented spectrum with low complexity, which may be used in cognitive radio systems. The authors first show a multicarrier modulation (MCM) framework and the implementation of transmit and receive windowing. The intersymbol interference (ISI) resulting from receive windowing with a multipath channel is illustrated, and the performance of the presented transceiver architecture is evaluated and compared with several other MCM techniques. The results show that windowing offers a simple transceiver architecture with acceptable performance and is well suited for cognitive radio scenarios with noncontiguous spectrum fragments. Its performance can be further improved by using more advanced receivers.

• Record URL:
  • https://doi.org/10.1109/MVT.2013.2269178
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/15566072
• Authors:
  • Bala, E
  • Li, Jiangqiang
  • Yang, R
• Publication Date: 2013-9

Language

• English

Media Info

• Media Type: Print
• Features: Figures; References; Tables;
• Pagination: pp 38-46
• Serial:
  • IEEE Vehicular Technology Magazine
  • Volume: 8
  • Issue Number: 3
  • Publisher: Institute of Electrical and Electronics Engineers (IEEE)
  • ISSN: 1556-6072
  • Serial URL: http://ieeexplore.ieee.org/xpl/tocresult.jsp?isnumber=34840

Subject/Index Terms

• TRT Terms: Frequency (Electromagnetism); Intelligent agents; Interference; Mobile communication systems; Orthogonality; Power spectra; Radio frequency; Transceivers
• Uncontrolled Terms: Cognitive radio networks
• Subject Areas: Design; Highways; Operations and Traffic Management; Vehicles and Equipment; I73: Traffic Control; I91: Vehicle Design and Safety;

Filing Info

• Accession Number: 01493693
• Record Type: Publication
• Files: TRIS
• Created Date: Sep 20 2013 4:31PM