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Multiple Antenna (MA) for Cognitive Radio Based Wireless Mesh Networks (CRWMNs): Spectrum Sensing (SS)

  • Mulugeta Atlabachew
  • Jordi Casademont
  • Yalemzewd Negash
Conference paper
Part of the Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering book series (LNICST, volume 244)

Abstract

The concept of cognitive radio (CR) rings a big paradigm shift to the wireless communication domain. Extending this concept in to wireless mesh networks (WMN) results a CRWMN which alleviates the pragmatic spectrum congestion in the ISM bands. The assimilation of MAs technology in to CRWMN brings an astonishing system performance improvement. The use of MAs in WMN improves system capacity and reliability, increases coverage area and spectrum usage efficiency; and result in lower power consumption, better interference cancellation, efficient spectrum sensing, and spectrum sharing. In spite of the significant advantages, the use of multiple antennas has considerable limitations. In this paper, we investigate the challenges, opportunities, and the possible research directions that the cognitive radio network (CRN) in general and the CRWMN in particular experience while incorporating MAs to the system and its effect on spectrum sensing.

Keywords

Multiple antennas Beamfoming WMN CRN CRWMN Spectrum sensing 

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Copyright information

© ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2018

Authors and Affiliations

  • Mulugeta Atlabachew
    • 1
  • Jordi Casademont
    • 2
  • Yalemzewd Negash
    • 1
  1. 1.Addis Ababa UniversityAddis AbabaEthiopia
  2. 2.UPC, BarcelonaTechBarcelonaSpain

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