TV White Spaces Opportunistic Spectrum Access for Wireless Regional Area Networks.

  • Kenneth Kimani Jomo Kenyatta University of Agriculture and Technology
  • Kibet Langat Jomo Kenyatta University of Agriculture and Technology


Radio spectrum is a finite resource. Demand for access to spectrum  is at an all-time high and  it is becoming increasingly difficult to find spectrum that can be made available either for new services or to expand existing ones since most of the spectrum has been assigned.  The recent migration from analogue transmissions to the spectrally efficient digital television transmissions has however freed up some portions of the spectrum in the Ultra High Frequency (UHF) and Very High Frequency (VHF)  bands for reallocation to other licensed uses and also for opportunistic secondary access. These portions of  unused  spectrum  are  known as white spaces or spectrum holes in TV transmission bands. With demand for wireless connectivity increasing, the exploitation of white space is an attractive way of making more efficient use of radio spectrum simply by sharing the spectrum such that if not used in one location or during a given time period by the primary user, then it can be redeployed and used opportunistically  by secondary users as long as they  will not interfere with the primary users hence making it ripe for deployment of Wireless  Regional Area Networks  (WRAN). TV white space has  immense potential in those parts of the geographical area which are very  difficult and expensive to reach by optical fiber techniques and other types of technologies. It’s also very applicable to developing countries where the telecommunications infrastructure isn’t in place and can potentially be a cost effective way of bridging this telecommunications gap easily.This  paper aims  to investigate the suitability of unlicensed use of the TV White Space (TVWS) in a wireless regional area network without causing interference to the incumbent primary users and will also analyze interference if any to the primary users from secondary users in TV White Spaces.
Keywords—Wireless Regional Area Network (WRAN), Opportunistic Spectrum Access (OSA), TVWS (TV White Space)
Sep 25, 2017
How to Cite
KIMANI, Kenneth; LANGAT, Kibet. TV White Spaces Opportunistic Spectrum Access for Wireless Regional Area Networks.. Proceedings of Sustainable Research and Innovation Conference, [S.l.], p. 81-89, sep. 2017. ISSN 2079-6226. Available at: <>. Date accessed: 24 feb. 2018.