A cooperative approach for amplify-and-forward differential transmitted reference IR-UWB relay systems

M. Mondelli, Q. Zhou, X. Ma, V. Lottici, in:, 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2012, pp. 2905–2908.

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Conference Paper | Published | English
Author
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Abstract
This paper proposes a novel cooperative approach for two-hop amplify-and-forward (A&F) relaying that exploits both the signal forwarded by the relay and the one directly transmitted by the source in impulse-radio ultra-wideband (IR-UWB) systems. Specifically, we focus on a non-coherent setup employing a double-differential encoding scheme at the source node and a single differential demodulation at the relay and destination. The log-likelihood ratio based decision rule is derived at the destination node. A semi-analytical power allocation strategy is presented by evaluating a closed-form expression for the effective signal to noise ratio (SNR) at the destination, which is maximized by exhaustive search. Numerical simulations show that the proposed system outperforms both the direct transmission with single differential encoding and the non-cooperative multi-hop approach in different scenarios.
Publishing Year
Date Published
2012-07-31
Proceedings Title
2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)
Page
2905-2908
Conference
ICASSP: International Conference on Acoustics, Speech and Signal Processing
Conference Location
Kyoto, Japan
Conference Date
2012-03-25 – 2012-03-30
ISSN
IST-REx-ID

Cite this

Mondelli M, Zhou Q, Ma X, Lottici V. A cooperative approach for amplify-and-forward differential transmitted reference IR-UWB relay systems. In: 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). IEEE; 2012:2905-2908. doi:10.1109/icassp.2012.6288524
Mondelli, M., Zhou, Q., Ma, X., & Lottici, V. (2012). A cooperative approach for amplify-and-forward differential transmitted reference IR-UWB relay systems. In 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP) (pp. 2905–2908). Kyoto, Japan: IEEE. https://doi.org/10.1109/icassp.2012.6288524
Mondelli, Marco, Qi Zhou, Xiaoli Ma, and Vincenzo Lottici. “A Cooperative Approach for Amplify-and-Forward Differential Transmitted Reference IR-UWB Relay Systems.” In 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), 2905–8. IEEE, 2012. https://doi.org/10.1109/icassp.2012.6288524.
M. Mondelli, Q. Zhou, X. Ma, and V. Lottici, “A cooperative approach for amplify-and-forward differential transmitted reference IR-UWB relay systems,” in 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Kyoto, Japan, 2012, pp. 2905–2908.
Mondelli M, Zhou Q, Ma X, Lottici V. 2012. A cooperative approach for amplify-and-forward differential transmitted reference IR-UWB relay systems. 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP). ICASSP: International Conference on Acoustics, Speech and Signal Processing 2905–2908.
Mondelli, Marco, et al. “A Cooperative Approach for Amplify-and-Forward Differential Transmitted Reference IR-UWB Relay Systems.” 2012 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), IEEE, 2012, pp. 2905–08, doi:10.1109/icassp.2012.6288524.

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