Technical challenges for cognitive radio in the TV white space spectrum

The FCC recently issued the regulatory rules for cognitive radio use of the TV white space spectrum. These new rules provide an opportunity but they also introduce a number of technical challenges. The challenges require development of cognitive radio technologies like spectrum sensing as well as new wireless PHY and MAC layer designs. These challenges include spectrum sensing of both TV signals and wireless microphone signals, frequency agile operation, geo-location, stringent spectral mask requirements, and of course the ability to provide reliable service in unlicensed and dynamically changing spectrum. After describing these various challenges we will describe some of the possible methods for meeting these challenges.

[1]  Ming-Kai Tsai,et al.  VHF/UHF high-Q bandpass tunable filters design using CMOS-inverter-based transresistance amplifiers , 1994, Proceedings of IEEE International Symposium on Circuits and Systems - ISCAS '94.

[2]  Dipankar Raychaudhuri,et al.  Spectrum Co-existence of IEEE 802.11b and 802.16a Networks Using Reactive and Proactive Etiquette Policies , 2006, Mob. Networks Appl..

[3]  S.A. Kassam,et al.  Robust techniques for signal processing: A survey , 1985, Proceedings of the IEEE.

[4]  H. Vincent Poor,et al.  An Introduction to Signal Detection and Estimation , 1994, Springer Texts in Electrical Engineering.

[5]  H. Vincent Poor,et al.  An introduction to signal detection and estimation (2nd ed.) , 1994 .

[6]  A. Ghasemi,et al.  Collaborative spectrum sensing for opportunistic access in fading environments , 2005, First IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks, 2005. DySPAN 2005..

[7]  Haitao Zheng,et al.  A General Framework for Wireless Spectrum Auctions , 2007, 2007 2nd IEEE International Symposium on New Frontiers in Dynamic Spectrum Access Networks.

[8]  Anant Sahai,et al.  SNR Walls for Signal Detection , 2008, IEEE Journal of Selected Topics in Signal Processing.

[9]  William Gardner,et al.  Spectral Correlation of Modulated Signals: Part I - Analog Modulation , 1987, IEEE Transactions on Communications.

[10]  Roy D. Yates,et al.  A Framework for Dynamic Spectrum Sharing Between Cognitive Radios , 2007, 2007 IEEE International Conference on Communications.