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Open Access Open Badges Research Article

Time Reversal UWB Communication System: A Novel Modulation Scheme with Experimental Validation

IH Naqvi1*, A Khaleghi2 and G El Zein3

Author Affiliations

1 LUMS School of Science and Engineering, Sector U, DHA, 54792 Lahore Cantt, Pakistan

2 EE Department, Khaje Nasir Toosi University (KNTU), Tehran, Iran

3 Institute of Electronics and Telecommunications of Rennes, IETR-UMR CNRS 6164, INSA, 20 Avenue des Buttes de Coesmes, 35043 Rennes, France

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EURASIP Journal on Wireless Communications and Networking 2010, 2010:398401  doi:10.1155/2010/398401

The electronic version of this article is the complete one and can be found online at: http://jwcn.eurasipjournals.com/content/2010/1/398401

Received:3 August 2009
Accepted:18 February 2010
Published:10 May 2010

© 2010 The Author(s).

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

A new modulation scheme is proposed for a time reversal (TR) ultra wide-band (UWB) communication system. The new modulation scheme uses the binary pulse amplitude modulation (BPAM) and adds a new level of modulation to increase the data rate of a TR UWB communication system. Multiple data bits can be transmitted simultaneously with a cost of little added interference. Bit error rate (BER) performance and the maximum achievable data rate of the new modulation scheme are theoretically analyzed. Two separate measurement campaigns are carried out to analyze the proposed modulation scheme. In the first campaign, the frequency responses of a typical indoor channel are measured and the performance is studied by the simulations using the measured frequency responses. Theoretical and the simulative performances are in strong agreement with each other. Furthermore, the BER performance of the proposed modulation scheme is compared with the performance of existing modulation schemes. It is shown that the proposed modulation scheme outperforms QAM and PAM for in an AWGN channel. In the second campaign, an experimental validation of the proposed modulation scheme is done. It is shown that the performances with the two measurement campaigns are in good agreement.

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