Coherent and differential acoustic communication in shallow water using transmitter and receiver arrays

Chizhik, Dmitry; Rosenberg, Allan P.; Zhang, Qinqing

doi:10.1109/oceanssyd.2010.5603913

Cited by 5 publications

(1 citation statement)

References 8 publications

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“…Although their fabricated design used a hydrophone array that can only receive acoustic signals without transmitting them, the same concept can be extended for a hydrophone array with both sensing and emitting properties [Billon and Quellec 1994;Chizhik et al 2010]. Figure 6 shows an illustration of the 7-element 3D vector sensor array with sensors oriented at both positive and negative axis ±(x, y, z) as well as at the origin (0, 0, 0).…”

Section: Acoustic Antenna Modelmentioning

confidence: 99%

Surface-Reflection-Based Communication and Localization in Underwater Sensor Networks

Emokpae

Younis

2014

ACM Trans. Sen. Netw.

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Most communication and localization algorithms in underwater environments have been constrained by dependencies on the Line Of Sight (LOS), which is hard to guarantee due to the inherent node mobility. This constraint hinders node discovery and ad hoc formation in underwater networks and limits the performance of routing protocols. This article introduces a novel Surface-Based Reflection (SBR) model that uses a homomorphic deconvolution technique to establish water-surface-reflected communication links. We then propose a Surface-Based Reflection Anchor-free Localization (SBR-AL) algorithm that can be employed by the individual nodes to establish a relative coordinate system. Our approach also employs a switchbeamed directional antenna model that allows each node to use the LOS estimated from SBR-AL to enable directional communication which is beneficial for higher Signal-to-Noise Ratios (SNR). The relative locations can facilitate the various network operation functions such as geo-routing and collision-free medium access. The simulation results confirm the effectiveness of the proposed approach. ACM Reference Format:Lloyd Emokpae and Mohamed Younis. 2014. Surface-reflection-based communication and localization in underwater sensor networks.

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Section: Acoustic Antenna Modelmentioning

confidence: 99%