Efficient TV white space filter bank transceiver

Future devices operating in the TV white space (TVWS) spectrum will require to access different bands at different locations and times in order to avoid interference to incumbent users, requiring agility and sufficient spectral masks to satisfy regulators. Further, with very high-speed ADCs and DACs becoming reality, the purpose of this paper is to present a transceiver front-end capable of simultaneously up- and downconverting a significant portion of the UHF band. The proposed approach takes a two-stage filter-bank conversion for implementation on state-of-the-art FPGAs. We present three different parameterisations, which are compatible with the 40 TVWS channels between 470 and 790 MHz in Europe, and compare them in terms of complexity and latency.

[1]  K. Sakaguchi,et al.  Study on multi-channel receiver based on polyphase filter bank , 2008, 2008 2nd International Conference on Signal Processing and Communication Systems.

[2]  Plessis Robinson,et al.  TDM-FDM Transmultiplexer: Digital Polyphase and FFT , 1974 .

[3]  Olivier Venard,et al.  Broadband digitization for cable tuners front-end , 2011, 2011 41st European Microwave Conference.

[4]  Stephan Weiss,et al.  Fast implementation of oversampled modulated filter banks , 2000 .

[5]  Michael Rice,et al.  Digital receivers and transmitters using polyphase filter banks for wireless communications , 2003 .

[6]  Behrouz Farhang-Boroujeny,et al.  OFDM Versus Filter Bank Multicarrier , 2011, IEEE Signal Processing Magazine.

[7]  Andrea M. Tonello,et al.  Efficient Architectures for Multiuser FMT Systems and Application to Power Line Communications , 2009, IEEE Transactions on Communications.

[8]  Georges Bonnerot,et al.  Digital Processing Techniques in the 60 Channel Transmultiplexer , 1978, IEEE Trans. Commun..

[9]  Fumio Takahata,et al.  Development of a TDM/FDM Transmultiplexer , 1978, IEEE Trans. Commun..

[10]  Behrouz Farhang-Boroujeny,et al.  A Square-Root Nyquist (M) Filter Design for Digital Communication Systems , 2008, IEEE Transactions on Signal Processing.

[11]  M. Renfors,et al.  Exponentially-modulated filter bank transmultiplexer with fine-coarse adaptive filtering , 2008, 2008 3rd International Symposium on Communications, Control and Signal Processing.

[12]  Olivier Venard,et al.  Design, optimization and realization of an HFB-based ADC , 2011, 2011 20th European Conference on Circuit Theory and Design (ECCTD).

[13]  Stephan D. Weiss,et al.  Performance of transmultiplexers based on oversampled filter banks under variable oversampling ratios , 2010, 2010 18th European Signal Processing Conference.

[14]  F. Molo.  Transmultiplexer Realization with Multistage Filtering , 1982, IEEE Trans. Commun..

[15]  Benoît Champagne,et al.  Perfect reconstruction DFT modulated oversampled filter bank transceivers , 2011, 2011 19th European Signal Processing Conference.

[16]  Ahmed K. Sadek,et al.  Technical challenges for cognitive radio in the TV white space spectrum , 2009, 2009 Information Theory and Applications Workshop.

[17]  John M. Cioffi,et al.  Filter bank modulation techniques for very high speed digital subscriber lines , 2000 .

[18]  Chong Meng Samson See,et al.  Very Low Complexity Variable Resolution Filter Banks for Spectrum Sensing in Cognitive Radios Using Multi-Stage Coefficient Decimation , 2009, 2009 5th International Conference on Wireless Communications, Networking and Mobile Computing.