A Survey of the DVB-T Spectrum: Opportunities for Cognitive Mobile Users

Cognitive radio (CR) systems are designed to utilize the available radio spectrum in an efficient and intelligent manner. Terrestrial Digital Video Broadcasting (DVB-T) frequency bands are one of the future candidates for cognitive radio applications especially because after digital television transition the TV white spaces (TVWS) became available for radio communication. This paper deals with the survey of the DVB-T spectrum; wideband measurements were performed on mobile platform in order to study the variation of the radio signal power in city area aboard a moving vehicle. The measurement environment was a densely built-in region where the proper DVB-T receiving was guaranteed by three TV transmitters, utilizing three central channel frequencies using 610, 746, and 770 MHz. In our paper the methods, the applied antenna, and measurement devices will be presented together with simulated and measured fading statistics. The final result is an estimation of the cognitive DVB-T spectrum utilization opportunity; furthermore a scenario is also proposed for secondary channel usage.

[1]  Dan McCloskey,et al.  Chicago spectrum occupancy measurements & analysis and a long-term studies proposal , 2006, TAPAS '06.

[2]  Mauro Fadda,et al.  Field measurements for practical unlicensed communication in the UHF band , 2016, Telecommun. Syst..

[3]  Rose Qingyang Hu,et al.  On Spectrum Sensing for TV White Space in China , 2012, J. Comput. Networks Commun..

[4]  Epj Tozer,et al.  Broadcast Engineer's Reference Book , 2012 .

[5]  Erik G. Larsson,et al.  Overview of spectrum sensing for cognitive radio , 2010, 2010 2nd International Workshop on Cognitive Information Processing.

[6]  Nordin Ramli,et al.  Measurements and Analysis of Spectrum Occupancy in the Cellular and TV Bands , 2014 .

[7]  Ian F. Akyildiz,et al.  NeXt generation/dynamic spectrum access/cognitive radio wireless networks: A survey , 2006, Comput. Networks.

[8]  Umberto Spagnolini,et al.  Cooperation and Cognitive Radio , 2007, 2007 IEEE International Conference on Communications.

[9]  Ion Marghescu,et al.  Evaluation of Spectrum Occupancy in an Urban Environment in a Cognitive Radio Context , 2010 .

[10]  Mauro Fadda,et al.  On the Feasibility of Unlicensed Communications in the TV White Space: Field Measurements in the UHF Band , 2015, Int. J. Digit. Multim. Broadcast..

[11]  Prediction method of fade dynamics on Earth-space paths , 2003 .

[12]  Ulrich H. Reimers,et al.  DVB-The Family of International Standards for Digital Video Broadcasting , 2004, Proceedings of the IEEE.

[13]  Jordi Pérez-Romero,et al.  Spectrum occupancy in big cities ?? comparative study ?? Measurement campaigns in Barcelona and Poznan , 2013, ISWCS.

[14]  Mansoor Shafi,et al.  Performance of Cognitive Radio Systems with Imperfect Radio Environment Map Information , 2009, 2009 Australian Communications Theory Workshop.

[15]  Mohamed Khedr,et al.  Opportunistic channel allocation decision making in cognitive radio communications , 2014, Int. J. Commun. Syst..

[16]  M. Hata,et al.  Empirical formula for propagation loss in land mobile radio services , 1980, IEEE Transactions on Vehicular Technology.

[17]  Seong-Ook Park,et al.  An ultrawide-band double discone antenna with the tapered cylindrical wires , 2005 .

[18]  Spectrum occupancy measurements and evaluation , 2017 .

[19]  Peter J. Smith,et al.  Level crossing rates of interference in cognitive radio networks , 2010, IEEE Transactions on Wireless Communications.

[20]  Brian Evans.  Understanding Digital TV: The Route to Hdtv , 1995 .

[21]  Deepa Das,et al.  A Survey on Spectrum Occupancy Measurement for Cognitive Radio , 2015, Wirel. Pers. Commun..

[22]  Octavian Fratu,et al.  UHF TV band spectrum and field-strength measurements before and after analogue switch-off , 2014, 2014 4th International Conference on Wireless Communications, Vehicular Technology, Information Theory and Aerospace & Electronic Systems (VITAE).

[23]  K. Ramchandran,et al.  Detecting primary receivers for cognitive radio applications , 2005, First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005..

[24]  M. Mehdawi,et al.  Comparing historical and current spectrum occupancy measurements in the context of cognitive radio , 2012, 2012 20th Telecommunications Forum (TELFOR).

[25]  Partha Pratim Bhattacharya,et al.  A Survey on Spectrum Sensing Techniques in Cognitive Radio , 2011 .

[26]  Arturas Medeisis,et al.  On the use of the universal Okumura-Hata propagation prediction model in rural areas , 2000, VTC2000-Spring. 2000 IEEE 51st Vehicular Technology Conference Proceedings (Cat. No.00CH37026).

[27]  Brian M. Sadler,et al.  A Survey of Dynamic Spectrum Access , 2007, IEEE Signal Processing Magazine.

[28]  Jordi Pérez-Romero,et al.  DVB-T channels measurements for the deployment of outdoor REM databases , 2014 .

[29]  Maziar Nekovee.  A survey of cognitive radio access to TV White Spaces , 2009, 2009 International Conference on Ultra Modern Telecommunications & Workshops.

[30]  Laszlo Csurgai-Horvath,et al.  Mobile access of the DVB-T channel and the opportunity for cognitive spectrum utilization , 2015, 2015 17th International Conference on Transparent Optical Networks (ICTON).

[31]  Gerhard Fettweis,et al.  TVWS regulation and QoSMOS requirements , 2011, 2011 2nd International Conference on Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology (Wireless VITAE).