RIPT: A Receiver-Initiated Reservation-Based Protocol for Underwater Acoustic Networks

Chirdchoo, Nitthita; Soh, Wee-Seng; Chua, Kee Chaing

doi:10.1109/jsac.2008.081213

Cited by 108 publications

(77 citation statements)

References 18 publications

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“…Based on this protocol, data packet (DP) was transmitted to neighbors in a single handshake [5]. Soon they proposed a four-way handshake protocol RIPT, by which the receivers' initial reservation was utilized and the DP was gotten through coordinating multiple one-hops [6]. Liao et al proposed the protocol MR-MAC, by which three or more nodes were allowed to communicate in one handshake.…”

Section: Uwanmentioning

confidence: 99%

A new MAC protocol of UASN (RABIC-MAC) based on high efficiency, concurrent and bidirection

Liu¹,

Yang²,

Peng³

et al. 2015

Proceedings of the 2015 International Conference on Applied Science and Engineering Innovation

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Studies on MAC protocols of the Underwater Acoustic Sensor Network (UASN) are very important due to wide application area and great application potential of UASN. In this paper, a new concurrent bidirectional MAC protocol based on receiver self-adaption (RABIC-MAC) is proposed to improve the data transmission efficiency and reduce the overhead. Then the throughput and the End-to-End delay are calculated, and then compared with the BIC protocol. Results show that the saturated throughput is larger 16.7 % and 33.0 % for 4200 and 6125 m, respectively, than the BIC. The saturated End-to-End delay is larger 13.0 % and 20.0 % for 4200 and 6125 m, respectively, than the BIC. Therefore, the RABIC-MAC evidently improves performances of UASN.

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Section: Uwanmentioning

confidence: 99%

A new MAC protocol of UASN (RABIC-MAC) based on high efficiency, concurrent and bidirection

Liu¹,

Yang²,

Peng³

et al. 2015

Proceedings of the 2015 International Conference on Applied Science and Engineering Innovation

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“…[101], and others [116] have been developed to mediate between multiple communicating nodes. Some protocols provide for single transmissions, whereas others allow long periods of time to be reserved by a vehicle for data transmission, amortizing the cost of a traditional CTS/RTS exchange over a longer transmission [17,84]. Many recent protocols incorporate knowledge of vehicle location into the MAC process, to allow estimation of latencies [79] and tuning of transmission power [136].…”

Section: Telemetry Encodingmentioning

confidence: 99%

Progressively communicating rich telemetry from autonomous underwater vehicles via relays

Murphy¹

2012

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As analysis of imagery and environmental data plays a greater role in mission construction and execution, there is an increasing need for autonomous marine vehicles to transmit this data to the surface. Without access to the data acquired by a vehicle, surface operators cannot fully understand the state of the mission. Communicating imagery and high-resolution sensor readings to surface observers remains a significant challenge -as a result, current telemetry from free-roaming autonomous marine vehicles remains limited to 'heartbeat' status messages, with minimal scientific data available until after recovery. Increasing the challenge, longdistance communication may require relaying data across multiple acoustic hops between vehicles, yet fixed infrastructure is not always appropriate or possible.In this thesis I present an analysis of the unique considerations facing telemetry systems for free-roaming Autonomous Underwater Vehicles (AUVs) used in exploration. These considerations include high-cost vehicle nodes with persistent storage and significant computation capabilities, combined with human surface operators monitoring each node. I then propose mechanisms for interactive, progressive communication of data across multiple acoustic hops. These mechanisms include wavelet-based embedded coding methods, and a novel image compression scheme based on texture classification and synthesis. The specific characteristics of underwater communication channels, including high latency, intermittent communication, the lack of instantaneous end-to-end connectivity, and a broadcast medium, inform these proposals. Human feedback is incorporated by allowing operators to identify segments of data that warrant higher quality refinement, ensuring efficient use of limited throughput. I then analyze the performance of these mechanisms relative to current practices.Finally, I present CAPTURE, a telemetry architecture that builds on this analysis. CAPTURE draws on advances in compression and delay tolerant networking to enable progressive transmission of scientific data, including imagery, across mul-3 tiple acoustic hops. In concert with a physical layer, CAPTURE provides an endto-end networking solution for communicating science data from autonomous marine vehicles. Automatically selected imagery, sonar, and time-series sensor data are progressively transmitted across multiple hops to surface operators. Human operators can request arbitrarily high-quality refinement of any resource, up to an error-free reconstruction. The components of this system are then demonstrated through three field trials in diverse environments on SeaBED, OceanServer and Bluefin AUVs, each in different software architectures.

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“…Since underwater sensor nodes (UNs) compete with each other to occupy the common acoustic communication channel formed by the propagation of the slow sound waves, the contention-based MAC protocols [7][8][9][10][11][12][13][14][15][16][17][18][19][20][21] suffer from the collision risk. The collision probability of the contention-based MAC protocols is increased as the traffic load increases.…”

Section: Introductionmentioning

confidence: 99%

Asymmetric Propagation Delay-Aware TDMA MAC Protocol for Mobile Underwater Acoustic Sensor Networks

et al. 2018

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Abstract:The propagation delay in mobile underwater acoustic sensor network (MUASN) is asymmetric because of its low sound propagation speed, and this asymmetry grows with the increase in packet travel time, which damages the collision avoidance mechanism of the spatial reuse medium access control (MAC) protocols for MUASN. We propose an asymmetric propagation delay-aware time division multiple access (APD-TDMA) for a MUASN in which periodic data packet transmission is required for a sink node (SN). Collisions at the SN are avoided by deferring data packet transmission after reception of a beacon packet from the SN, and data packets are arrived at the SN in a packet-train manner. The time-offset, which is the time for a node to wait before the transmission of a data packet after reception of a beacon packet, is determined by estimating the propagation delay over two consecutive cycles such that the idle interval at the SN is minimized, and this time-offset is announced by the beacon packet. Simulation results demonstrate that the APD-TDMA improves the channel access delay and the channel utilization by approximately 20% and 30%, respectively, compared with those of the block time bounded TDMA under the given network conditions.

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RIPT: A Receiver-Initiated Reservation-Based Protocol for Underwater Acoustic Networks

Cited by 108 publications

References 18 publications

A new MAC protocol of UASN (RABIC-MAC) based on high efficiency, concurrent and bidirection

A new MAC protocol of UASN (RABIC-MAC) based on high efficiency, concurrent and bidirection

Progressively communicating rich telemetry from autonomous underwater vehicles via relays

Asymmetric Propagation Delay-Aware TDMA MAC Protocol for Mobile Underwater Acoustic Sensor Networks

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