水下无线传感器网络的研究进展

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1、计算机研究与发展ISSN1000-1239]CN11—1777／TP!!兰!呈!!竺!星!銎!!竺墨!!!!竺!!!!呈!：：!!￡竺!：：!!!!!!!!!：!!!：!!!!水下无线传感器网络的研究进展郭忠文1罗汉江1洪锋1杨猛1倪明选21(中国海洋大学信息科学与工程学院计算机科学与技术系山东青岛266100)。(香港科技大学计算机科学与工程系香港)(guozhw@ouc．edu．cn)CurrentProgressandResearchIssuesinUnderwaterSensorNetworksG

2、uoZhongwen‘，LuoHanjian91，HongFen91，YangMen91，andLionelMNi21(DepartmentofComputerScience．CollegeofInformationScience&Engineering，OceanUniversityofChina，Qingdao，Shandong266100)2(DepartmentofComputerScienceandEngineering，HongKongUniversityofScienceandTechnol

3、ogy，HongKong)AbstractWiththeemphasisoneffectivesafeguardingofthenationalmarinerightsandinterests。theupsurgeinmarineeconomicdevelopmentandthesignificantprogressinwirelesssensornetworks，underwatersensornetworkshavebecomeanewhotresearcharea．Underwatersensorn

4、etworksaredeployedtoperformcollaborativetaskssuchasoceanographicdatacollection，pollutionmonitoring，offshoreexploration，disasterprevention，assistednavigation，andtacticalsurveillance．UnderwatersensornetworksuseacousticsignalstOcommunicatewitheachother，thust

5、hepropagationdelayislargeduetotheslowacousticsignalpropagationspeed．Underwateracousticcommunicationchannelhaslimitedbandwidthcapacitybecauseofthesignificantfrequencyanddistancedependentattenuation．Theharshunderwaterchannelalsohashighbiterrorrates．Thus，som

6、enewalgorithmsneeddesigningforunderwatersensornetworks．Anoverviewofunderwaterwirelesscommunicationtechnologies，thedesignofcommunicationhardware，theunderwaternetwork．architectureandthecharacteristicsofunderwatercommunicationchannelsareintroducedfirstly．The

7、ngivenisamoredetaileddescriptionofeightimportantresearchtopics：acousticmodulation，mediumaccesscontrol，routingprotocols，transportprotocols，CROSS—layerdesign，networksinformationprocessing，localizationtechniquesandsimulationenvironments．Researchorganizations

8、onunderwatersensornetworksarealsointroduced．Finallypresentedarepresentproblemsencounteredincurrentresearchandfutureresearchdirectionsinthisexcitingandemergingresearcharea．Keywordsunderwatersensornetworks；acousticnet