Abstract
As radio spectrum is becoming congested, wireless communications require more efficient spectrum usage. Recently, the cognitive radio (CR) techniques have become attractive as they can utilize any unused spectrum. In this paper, we build a CR video communication test-bed, which implements spectrum sensing and spectrum handoff functionalities in USRP boards. We have implemented compressive spectrum sensing, intelligent spectrum handoff, multi-video-flow transmission, under TDMA scheduling and Raptor codes for reliable video transmissions. By using compressive sensing in spectrum sensing method, the spectrum detection accuracy is improved without much algorithm complexity, and it is also robust to the noise uncertainty due to the use of cyclostationary features. To realize intelligent spectrum handoff, we have designed a real-time jamming detection scheme, as well as synchronized spectrum switching method. We have also implemented a multi-point TDMA-based communication system, which enables any node to send out multiple video flows to different neighbors with pipelined and scheduled data transmissions. We also proposed a special rateless codes called prioritized Raptor codes for more reliable video transmission and implemented in the GNU Radio applications. The proposed CR video transmission testbed can be used for new protocol testing purpose.
Access provided by Autonomous University of Puebla. Download to read the full chapter text
Chapter PDF
Similar content being viewed by others
References
FCC, E.: Docket no 03-222 notice of proposed rule making and order (2003)
Thomas, R.W., Friend, D.H., DaSilva, L.A., MacKenzie, A.B.: Cognitive networks. Springer (2007)
Akyildiz, I.F., Lee, W.-Y., Vuran, M.C., Mohanty, S.: A survey on spectrum management in cognitive radio networks. IEEE on Communications Magazine 46(4), 40–48 (2008)
Ettus, M.: Usrp users and developers guide. Ettus Research LLC (2005)
Dhar, R., George, G., Malani, A., Steenkiste, P.: Supporting integrated MAC and PHY software development for the USRP SDR. In: 1st IEEE Workshop on Networking Technologies for Software Defined Radio Networks, SDR 2006, pp. 68–77. IEEE (2006)
Sarijari, M.A., Marwanto, A., Fisal, N., Yusof, S.K.S., Rashid, R., Satria, M.H., et al.: Energy detection sensing based on GNU radio and USRP: an analysis study. In: 2009 IEEE 9th Malaysia International Conference on Communications (MICC), pp. 338–342. IEEE (2009)
Marwanto, A., Sarijari, M.A., Fisal, N., Yusof, S.K.S., Rashid, R., et al.: Experimental study of OFDM implementation utilizing GNU radio and USRP-SDR. In: 2009 IEEE 9th Malaysia International Conference on Communications (MICC), pp. 132–135. IEEE (2009)
Gardner, W., et al.: Exploitation of spectral redundancy in cyclostationary signals. IEEE on Signal Processing Magazine 8(2), 14–36 (1991)
Gardner, W.A., Napolitano, A., Paura, L.: Cyclostationarity: Half a century of research. Signal Processing 86(4), 639–697 (2006)
Shokrollahi, A., Luby, M.: Raptor codes. Now Publishers Inc. (2011)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2016 Springer International Publishing Switzerland
About this paper
Cite this paper
Qi, J., Hu, F., Li, X., Koushik, A.M., Hu, L., Kumar, S. (2016). CR Based Video Communication Testbed with Robust Spectrum Sensing / Handoff. In: Latifi, S. (eds) Information Technology: New Generations. Advances in Intelligent Systems and Computing, vol 448. Springer, Cham. https://doi.org/10.1007/978-3-319-32467-8_6
Download citation
DOI: https://doi.org/10.1007/978-3-319-32467-8_6
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-32466-1
Online ISBN: 978-3-319-32467-8
eBook Packages: EngineeringEngineering (R0)