No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Path specific Doppler compensation in time-reversal communications
1. M. Stojanovic, L. Freitag, and M. Johnson, “ Channel-estimation-based adaptive equalization of underwater acoustic signals,” in Proceedings of the MTS/IEEE Oceans 1999, Seattle, WA (September 1999), pp. 985–990.
2. G. F. Edelmann, W. S. Hodgkiss, S. Kim, W. A. Kuperman, H. C. Song, and T. Akal, “ Underwater acoustic communications using time-reversal,” in Proceedings of the MTS/IEEE Oceans 2001, Honolulu, HI (November 5–8, 2001), pp. 2231–2235.
3. D. Rouseff, “ Intersymbol interference in underwater acoustic communications using time-reversal signal processing,” J. Acoust. Soc. Am. 117(2), 780–788 (2005).
4. J. C. Preisig, “ Performance analysis of adaptive equalization for coherent acoustic communications in the time-varying ocean environment,” J. Acoust. Soc. Am. 118, 263–278 (2005).
5. T. H. Eggen, A. B. Baggeroer, and J. C. Preisig, “ Communication over Doppler spread channels. II: Receiver characterization and practical results,” IEEE J. Ocean. Eng. 26(4), 612–621 (2001).
6. A. Song, M. Badiey, H. C. Song, W. S. Hodgkiss, M. B. Porter, and KauaiEx Group, “ Impact of ocean variability on coherent underwater acoustic communications during the kauai experiment (kauaiex),” J. Acoust. Soc. Am. 123(2), 856–865 (2008).
7. S. Ijaz, A. J. Silva, O. C. Rodriguez, and S. M. Jesus, “ Doppler domain decomposition of the underwater acoustic channel response,” in Proceedings of Oceans 2011 MTS/IEEE Conference, Santander, Spain (June 2011).
9. J. P. Gomes, A. Silva, and S. M. Jesus, “ Adaptive spatial combining for passive time-reversed communications,” J. Acoust Soc. Am. 124(2), 1038–1053 (2008).
10. B. S. Sharif, J. Neasham, O. R. Hinton, and A. E. Adams, “ A computationally efficient Doppler compensation system for underwater acoustic communications,” IEEE J. Ocean. Eng. 25(1), 52–61 (2000).
11. A. Silva, S. M. Jesus, and J. P. Gomes, “ Environmental equalizer for underwater communications,” in Proceedings of Oceans MTS/IEEE 2007, Vancouver, BC, Canada (October 2007).
12. U. Vilaipornsawai, A. Silva, and S. M. Jesus, “ Underwater communications for moving source using geometry-adapted time reversal and DFE: UAN10 data,” in Proceedings of the MTS/IEEE Oceans 2011, Santander, Spain (June 2011).
13. F. Hlawatsch and G. Matz, Wireless Communications over Rapidly Time-Varying Channels ( Elsevier, Burlington, VT, 2011).
14. S. Ijaz, A. Silva, and S. M. Jesus, “ Compensating for source depth change and observing surface waves using underwater communication signals,” in Proceedings of the International Conference on Sensor Technologies and Applications, Venice, Italy (July 2010).
Article metrics loading...
Passive time reversal (pTR) is a low complexity receiver scheme that uses multichannel probing for time signal refocusing, thus reducing time spreading and improving inter-symbol interference. Recognizing that signals traveling through different paths are subject to arrival-angle-related Doppler displacements, this letter proposes a further improvement to pTR that applies correcting frequency shifts optimized for beams formed along each specific path arrival angle. The proposed channel equalizer is tested with real data, and the results show that the proposed approach outperforms both pTR and the modified pTR channel combiners providing an MSE gain of 4.9 and 4.2 dB, respectively.
Full text loading...
Most read this month