Proceedings of the 1st International Workshop on Underwater Networks最新文献

On the relationship between capacity and distance in an underwater acoustic communication channel 水声通信信道容量与距离的关系

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161049

M. Stojanovic

{"title":"On the relationship between capacity and distance in an underwater acoustic communication channel","authors":"M. Stojanovic","doi":"10.1145/1161039.1161049","DOIUrl":"https://doi.org/10.1145/1161039.1161049","url":null,"abstract":"Path loss of an underwater acoustic communication channel depends not only on the transmission distance, but also on the signal frequency. As a result, the useful bandwidth depends on the transmission distance, a feature that distinguishes an underwater acoustic system from a terrestrial radio one. This fact influences the design of an acoustic network: a greater information throughput is available if messages are relayed over multiple short hops instead of being transmitted directly over one long hop.We asses the bandwidth dependency on the distance using an analytical method that takes into account physical models of acoustic propagation loss and ambient noise. A simple, single-path time-invariant model is considered as a first step. To assess the fundamental bandwidth limitation, we take an information-theoretic approach and define the bandwidth corresponding to optimal signal energy allocation -- one that maximizes the channel capacity subject to the constraint that the transmission power is finite. Numerical evaluation quantifies the bandwidth and the channel capacity, as well as the transmission power needed to achieve a pre-specified SNR threshold, as functions of distance. These results lead to closed-form approximations, which may become useful tools in the design and analysis of acoustic networks.","PeriodicalId":180011,"journal":{"name":"Proceedings of the 1st International Workshop on Underwater Networks","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122191548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 634

Session details: Analysis and algorithms 会话详细信息:分析和算法

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/3260093

引用次数: 0

Deployment analysis in underwater acoustic wireless sensor networks 水声无线传感器网络的部署分析

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161050

D. Pompili, T. Melodia, I. Akyildiz

引用次数: 277

Sensor networks of freely drifting autonomous underwater explorers 自由漂流自主水下探测器传感器网络

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161058

J. Jaffe, C. Schurgers

引用次数: 81

Low-power acoustic modem for dense underwater sensor networks 用于密集水下传感器网络的低功耗声学调制解调器

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161055

Jack Wills, W. Ye, J. Heidemann

引用次数: 157

A MAC protocol for ad-hoc underwater acoustic sensor networks 一种用于自组织水声传感器网络的MAC协议

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161063

B. Peleato, M. Stojanovic

引用次数: 118

Acoustic propagation considerations for underwater acoustic communications network development 水声通信网络发展中的声传播问题

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161041

J. Preisig

引用次数: 65

When underwater acoustic nodes should sleep with one eye open: idle-time power management in underwater sensor networks 当水声节点应该睁一只眼睡觉:水下传感器网络的空闲时间电源管理

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161061

A. Harris, M. Stojanovic, M. Zorzi

{"title":"When underwater acoustic nodes should sleep with one eye open: idle-time power management in underwater sensor networks","authors":"A. Harris, M. Stojanovic, M. Zorzi","doi":"10.1145/1161039.1161061","DOIUrl":"https://doi.org/10.1145/1161039.1161061","url":null,"abstract":"The current interest in underwater sensor networks stems from the potential to use long term sensing devices to monitor the large mass of oceans on the planet (e.g., underwater seismic event monitoring or underwater oil rig monitoring). To accomplish this, the sensor nodes must have the ability to self-configure the communication network and provide energy-efficient data transmission. To this end, researchers have begun devising MAC-layer protocols that minimize energy consumption for data transmission. Acoustic modems typically present a number of modes of operation, similar to radio interfaces (e.g., transmit, receive, sleep, etc.), each of which consumes different levels of energy. In radio communications, the cost of keeping the interfaces idle is high; therefore, a number of idle-time power management solutions have been devised (e.g., GAF [1], STEM [2], TITAN [3]) to conserve energy during times of no communication. It is natural to attempt to use these same methods for energy conservation in underwater sensor networks. However, there are significant differences between acoustic modems and radios transceivers, making it doubtful whether previous conclusions will be valid for the underwater environment. The relative costs of various interface modes are significantly different for acoustic devices than for radios. Typical radio interfaces [4] have similar costs for transmitting, receiving and idling. On the other hand, acoustic modems have very high transmission costs with respect to receive costs, and have very low idle costs.","PeriodicalId":180011,"journal":{"name":"Proceedings of the 1st International Workshop on Underwater Networks","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2006-09-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129827590","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 63

A survey of practical issues in underwater networks 水下网络实际问题综述

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161045

J. Partan, J. Kurose, B. Levine

引用次数: 872

Design of a low-cost acoustic modem for moored oceanographic applications 系泊海洋应用低成本声学调制解调器的设计

Proceedings of the 1st International Workshop on Underwater Networks Pub Date : 2006-09-25 DOI: 10.1145/1161039.1161054

Bridget Benson, G. Chang, D. Manov, B. Graham, R. Kastner

引用次数: 40