Modeling and Simulation of P-Aloha,CSMA /CA and MACAW Protocols for Underwater Acoustic Channel  

作　　者：DAO Van-phuong 左加阔 赵力 NGUYEN Dang-nam 邹采荣 孙剑 

机构地区：[1]Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education,Southeast University [2]Ho Chi Minh City Industry and Trade College [3]Petroleum Department,Petrovietnam University [4]School of Information Engineering,Huangshan College

出　　处：《Journal of Donghua University(English Edition)》2015年第1期35-40,共6页东华大学学报（英文版）

基　　金：National Natural Science Foundations of China(Nos.60872073,6097501,and 51075068);the Doctoral Fund of Ministry of Education of China(No.20110092130004);the Research Foundation and Education Bureau of Anhui Province of China(No.KJ2009B137)

摘　　要：Medium access control( MAC) protocol of underwater acoustic communication network is a key technology for underwater acoustic networks( UANs). Most of the MAC protocols for wireless terrestrial communication networks have been designed with negligible propagation delay. If it is deployed directly in an underwater environment,the UANs will perform inefficiently. In this paper,the characteristics of underwater acoustic channel are modeled and simulated by using the OPNET simulation tool,which are the speed of sound, propagation loss, and four sources for ambient noise: the turbulence,shipping,wind driven waves and thermal noise. The performance of pure Aloha( P-Aloha),carrier sense multiple access with collision avoidance( CSMA / CA) and multiple access collision avoidance for wireless local area network( MACAW) protocols in underwater acoustic channel environment are evaluated. The different performance of protocols in underwater environment is compared in the simulation.Medium access control（ MAC） protocol of underwater acoustic communication network is a key technology for underwater acoustic networks（ UANs）. Most of the MAC protocols for wireless terrestrial communication networks have been designed with negligible propagation delay. If it is deployed directly in an underwater environment,the UANs will perform inefficiently. In this paper,the characteristics of underwater acoustic channel are modeled and simulated by using the OPNET simulation tool,which are the speed of sound, propagation loss, and four sources for ambient noise： the turbulence,shipping,wind driven waves and thermal noise. The performance of pure Aloha（ P-Aloha）,carrier sense multiple access with collision avoidance（ CSMA / CA） and multiple access collision avoidance for wireless local area network（ MACAW） protocols in underwater acoustic channel environment are evaluated. The different performance of protocols in underwater environment is compared in the simulation.

关 键 词：underwater acoustic channel OPNET simulation medium access control(MAC) protocol pure Aloha(P-Aloha) protocol carrier sense multiple access with collision avoidance(CSMA /CA) protocol multiple access collision avoidance for wireless local area network(MACAW) protocol 

分 类 号：TN912[电子电信—通信与信息系统]