underwater acoustic sensor data
A reliable data transfer protocol based on twin paths and network coding for underwater acoustic sensor network
... reduce data transmission overhead, the packets of group C are coded further at special ratio by network coding as shareable redundant packet accord- ing to the link error, and TPNC (twin path and network coding) ...
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A New Method to Improve Performance of Cooperative Underwater Acoustic Wireless Sensor Networks via Frequency Controlled Transmission Based on Length of Data Links
... But acoustic waves experience frequency and link length dependent Path- losses in underwater ...bubbles, acoustic waves are dispersed widely in underwater ...of underwater ...
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A hybrid based MAC protocol for underwater acoustic sensor networks
... Each sensor nodes are assigned to a pseudo number by using spectrum spreading technology in order to avoid ...reserved sensor nodes transmit their data packets in a given order via round robin ...
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Enhanced hop-by-hop routing algorithms for underwater acoustic sensor networks
... Stringent underwater environment imposes constraints on human involvement in the exploration of underwater ...results underwater sensor nodes must be able to self-configure, share their ...
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Analyzing the performance of Aloha in string multi hop underwater acoustic sensor networks
... Underwater sensor networks are becoming an important research ...graphic data collection, ocean resource exploration, dis- aster prevention, and so ...[1], acoustic technology is the typical ...
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Energy Efficient and Position Aware Routing for Auv Aided Underwater Acoustic Sensor Network
... the data is sent by pipeline fixed node. The AUV receive data from fixed pipeline node and forwards the data to buoys ...for data forwarding. The COA forwards data to buoys node with ...
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Routing Protocols for Underwater Wireless Sensor Networks
... all sensor nodes used in UWSNs are battery operated and it is difficult to accomplish battery replacement and the sensors acoustic modems usually consume much energy on data ...effective data ...
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A Hybrid ARQ scheme combining erasure codes and selective retransmissions for reliable data transfer in underwater acoustic sensor networks
... the acoustic modem is selected to be ...the acoustic channel over each ...each acoustic link has been assumed to take any of the four values: ...original data packets, each of size 60 ...of ...
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EARQ: ENERGY AWARE ROUTING FOR REAL-TIME SENSOR NETWORKS
... Underwater wireless sensor networks consist of a certain number of sensors and vehicles that interact to collect data and perform collaborative ...because sensor nodes are powered by ...
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A Survey on Underwater Acoustic Sensor Networks: Perspectives on Protocol Design for Signaling, MAC and Routing
... big data, and software defined networks (SDNs) are currently hot areas for ...the sensor nodes of an UASN can do data processing more than the past ...received data from all sensor ...
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Challenges for Efficient Communication in Underwater Acoustic Sensor Network
... each sensor directly sends the gathered data to the selected ...increased acoustic interference due to high transmission ...terrestrial sensor networks [5], the data produced by a ...
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Safety Aspects of Enhanced Underwater Acoustic Sensor Networks
... he underwater sensors learn the location, speed of mobile beacons, and neighbors during the localization phase [16]; the position and motion of mobile beacons are used by the routing protocol to choose the best ...
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Greedy routing in underwater acoustic sensor networks: a survey
... and acoustic modems, while ordinary nodes are random ly scattered in the area of ...with acoustic m ...in data packet and forwards ...redundant data packet forwarding, each candidate node ...
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Energy Efficient Reconfigurable MAC Protocol for Underwater Acoustic Sensor Network
... In MiXiM, node module represents any device with capable of networking, such as a sensor node, personal computer, or a server. A single node depicted in Fig 4.1b consists of application (appl), network (net) and ...
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A reverse localization scheme for underwater acoustic sensor networks
... Since acoustic communication is employed as convenient choice for underwater links, the localization schemes suffer from many constraints of acoustic ...low data rates are two closely related ...
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A New Localization Algorithm for Underwater Acoustic Sensor Networks
... sound sensor networks under water. In the improved method, the sensor nodes do not need extra hardware in order to achieve the distance or data such as AOA, TOA, ...The sensor nodes can ...
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Optimization of Multiple Gateway Deployment for Underwater Acoustic Sensor Networks
... of underwater acoustic signal (approximately 1500m/s, with variation due to minor changes of pressure, temperature, and salinity of water) is lower than electromagnetic wave propagation speed by five orders ...
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MAC protocol for underwater acoustic sensor network based on belied state space
... an underwater acoustic sensor network when a node is using a ...an underwater acoustic sensor network based on the belief state ...a sensor ’ s receiving nodes into n ...a ...
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Energy Ef ficient and Reliable Communication in Underwater Acoustic Sensor Networks
... A) Impact of Node Density: Here, we gradually change the average node density of the network by changing the maximal transmitting range of every node from 450 to 750 m4. Thus, the average node density changes from 4 to ...
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A survey on energy efficient MAC protocol for Underwater Sensor Networks
... listening. Sensor MAC (S-MAC), quorum-based MAC (Q-MAC), load- aware energy-efficient MAC (LE-MAC), and staggered scheduling (SS) apply duty cycling, ...ie., sensor nodes go to sleep periodically to save ...
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