Highly Directional Multipath Free High Data-Rate Communications With a Reconfigurable Modem

This paper presents a high data-rate underwater acoustic communication system that does not rely on large, powerful, and computationally complex modems. Our small size, weight, and power system is a reconfigurable acoustic modem platform (RAMP) that exploits transducer directivity to reduce the effects of multipath and mutual interference, thus eliminating the need for a traditional channel equalizer. Experimental results are shown to demonstrate the feasibility of RAMP in a shallow-water ocean environment to deliver real-time data transfer.

[1]  Paul C. Etter,et al.  Underwater acoustic modeling : principles, techniques and applications , 1996 .

[2]  Dario Pompili,et al.  Underwater acoustic sensor networks: research challenges , 2005, Ad Hoc Networks.

[3]  Lee Freitag,et al.  Channel-estimation-based adaptive equalization of underwater acoustic signals , 1999, Oceans '99. MTS/IEEE. Riding the Crest into the 21st Century. Conference and Exhibition. Conference Proceedings (IEEE Cat. No.99CH37008).

[4]  Simon E. Freeman,et al.  High-frequency, highly directional short-range underwater acoustic communications , 2015, OCEANS 2015 - MTS/IEEE Washington.

[5]  Dimitris A. Pados,et al.  Software-defined underwater acoustic networks: toward a high-rate real-time reconfigurable modem , 2015, IEEE Communications Magazine.

[6]  A. G. Kebkal,et al.  A frequency-modulated-carrier digital communication technique for multipath underwater acoustic channels , 2004 .

[7]  Zhou Shengli,et al.  Prospects and problems of wireless communication for underwater sensor networks , 2008 .

[8]  Peter I. Corke,et al.  Data collection, storage, and retrieval with an underwater sensor network , 2005, SenSys '05.

[9]  Emrecan Demirors,et al.  SEANet G2: toward a high-data-rate software-defined underwater acoustic networking platform , 2016, WUWNet.

[10]  A. G. Zajic,et al.  Feasibility Study of Underwater Acoustic Communications Between Buried and Bottom-Mounted Sensor Network Nodes , 2013, IEEE Journal of Oceanic Engineering.

[11]  R. Weber,et al.  Performance enhancement of blind adaptive equalizers using environmental knowledge , 2003, Oceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492).

[12]  Pierre-Philippe Beaujean,et al.  Performance analysis of the single input multiple output acoustic system for high frequency shallow water communications , 2014, 2014 Oceans - St. John's.

[13]  Michael J Ryan,et al.  High-frequency underwater acoustic communication development system , 2011, OCEANS'11 MTS/IEEE KONA.

[14]  Emrecan Demirors,et al.  Design of A Software-defined Underwater Acoustic Modem with Real-time Physical Layer Adaptation Capabilities , 2014, WUWNet.

[15]  Rudolf Bannasch,et al.  Sweep-spread carrier for underwater communication over acoustic channels with strong multipath propagation. , 2002, The Journal of the Acoustical Society of America.

[16]  Andrew C. Singer,et al.  Experimental results with HF underwater acoustic modem for high bandwidth applications , 2015, 2015 49th Asilomar Conference on Signals, Systems and Computers.

[17]  Milica Stojanovic,et al.  Underwater Acoustic Communications and Networking: Recent Advances and Future Challenges , 2008 .

[18]  Emrecan Demirors,et al.  SEANet: A Software-Defined Acoustic Networking Framework for Reconfigurable Underwater Networking , 2015, WUWNet.

[19]  Manuel Ricardo,et al.  Evaluation of IEEE 802.11 Underwater Networks Operating at 700 MHz, 2.4 GHz and 5 GHz , 2014, WUWNet.

[20]  Zhiqiang Liu,et al.  Long-Range Double-Differentially Coded Spread-Spectrum Acoustic Communications With a Towed Array , 2014, IEEE Journal of Oceanic Engineering.

[21]  A. E. Adams,et al.  Development of a real-time adaptive equalizer for a high-rate underwater acoustic data communications link , 1994, Proceedings of OCEANS'94.

[22]  Simon E. Freeman,et al.  A highly directional transducer for multipath mitigation in high-frequency underwater acoustic communications. , 2015, The Journal of the Acoustical Society of America.

[23]  Michele Zorzi,et al.  On the feasibility of fully wireless remote control for underwater vehicles , 2014, 2014 48th Asilomar Conference on Signals, Systems and Computers.

[24]  Pierre-Jean Bouvet,et al.  Least Square and Trended Doppler Estimation in Fading Channel for High-Frequency Underwater Acoustic Communications , 2014, IEEE Journal of Oceanic Engineering.

[25]  Michael R. Frater,et al.  Multi-octave high-frequency hydro-acoustic communication , 2013, 2013 OCEANS - San Diego.

[26]  G. Loubet,et al.  Underwater acoustic channel simulations for communication , 1994, Proceedings of OCEANS'94.

[27]  Pierre-Philippe Beaujean,et al.  Combined vehicle control, status check and high-resolution acoustic images retrieval using a high-frequency acoustic modem on a hovering AUV , 2010, OCEANS 2010 MTS/IEEE SEATTLE.

[28]  Shlomi Arnon,et al.  Non-line-of-sight underwater optical wireless communication network. , 2009, Journal of the Optical Society of America. A, Optics, image science, and vision.

[29]  Hsien-Sen Hung,et al.  Blind adaptive equalizer for underwater communications , 2004, Oceans '04 MTS/IEEE Techno-Ocean '04 (IEEE Cat. No.04CH37600).

[30]  A.B. Baggeroer,et al.  The state of the art in underwater acoustic telemetry , 2000, IEEE Journal of Oceanic Engineering.

[31]  Craig Benson,et al.  Design of a high frequency FPGA acoustic modem for underwater communication , 2010, OCEANS'10 IEEE SYDNEY.

[32]  Michael A. Ainslie,et al.  A simplified formula for viscous and chemical absorption in sea water , 1998 .

[33]  Mani B. Srivastava,et al.  Software-defined underwater acoustic networking platform , 2009, WUWNet.

[34]  Shengli Zhou,et al.  Prospects and Problems of Wireless Communication for Underwater Sensor , 2008 .

[35]  Rodger E. Ziemer,et al.  Principles of communications : systems, modulation, and noise , 1985 .

[36]  C. R. Benson,et al.  The high frequency underwater acoustic channel , 2010, OCEANS'10 IEEE SYDNEY.