[1]王毅,高翔,方世良,等.Aloha-LPD:一种用于水声通信网的MAC协议[J].东南大学学报(自然科学版),2009,39(1):12-17.[doi:10.3969/j.issn.1001-0505.2009.01.003]
　Wang Yi,Gao Xiang,Fang Shiliang,et al.Aloha-LPD: a MAC protocol for underwater acoustic networks[J].Journal of Southeast University (Natural Science Edition),2009,39(1):12-17.[doi:10.3969/j.issn.1001-0505.2009.01.003]
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Aloha-LPD:一种用于水声通信网的MAC协议()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
39
期数:
2009年第1期
页码:
12-17
栏目:
计算机科学与工程
出版日期:
2009-01-20

文章信息/Info

Title:
Aloha-LPD: a MAC protocol for underwater acoustic networks
作者:
王毅;  高翔;  方世良;  郭延芬
东南大学信息科学与工程学院, 南京 210096
Author(s):
Wang Yi;  Gao Xiang;  Fang Shiliang;  Guo Yanfen
School of Information Science and Engineering, Southeast University, Nanjing 210096, China
关键词:
水声通信网;  长传播延迟;  OPNET仿真;  MAC协议
Keywords:
underwater acoustic network;  long propagation delay;  OPNET simulation;  MAC(medium access control)protocol
分类号:
TP393
DOI:
10.3969/j.issn.1001-0505.2009.01.003
摘要:
为了减小长传播延迟对水声通信网性能的影响,在传统Aloha协议的基础上,借鉴CSMA协议载波侦听的思想,提出了一种用于水声通信网的MAC协议Aloha-LPD.利用水声通信的长传播延迟,采用半双工的通信方式,增加节点等待ACK回复帧过程中接收数据帧的机制,使一个节点同时与多个节点无冲突地通信.通过OPNET建立仿真模型,分析结果表明,与传统Aloha协议和基于RTS/CTS握手的协议相比,Aloha-LPD协议能够提高网络吞吐量,减小网络的端到端延迟.水声传输信道的长延迟是水声通信网性能的一大瓶颈,但如果能合理利用,也能改善水声通信网的性能.
Abstract:
In order to minimize the impact of long propagation delay on the performance of underwater acoustic network, a MAC(medium access control)protocol suitable for an underwater acoustic network is proposed, which is called Aloha-LPD(Aloha with long propagation delay). It was based on pure Aloha and carrier sensing in CSMA(carrier sense multiple access). Aloha-LPD can make one node communicate with several nodes without collision by utilizing long propagation delay, half-duplex communication and mechanism of receiving data frame in the process of waiting for ACK(acknowledgement)frame. OPNET simulation was used to validate the protocol. Simulation results show that Aloha-LPD protocol can achieve higher throughput and less end-to-end delay than the pure Aloha protocol and RTS/CTS(request to send/clear to send)based protocols. Long propagation delay is the bottleneck for network’s performance, but it can also be utilized reasonably to improved the network performance.

参考文献/References:

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备注/Memo

备注/Memo:
作者简介: 王毅(1983—),男,硕士生; 高翔(联系人),男,博士,副教授,xianggao@seu.edu.cn.
引文格式: 王毅,高翔,方世良,等.Aloha-LPD:一种用于水声通信网的MAC协议[J].东南大学学报:自然科学版,2009,39(1):12-17.
更新日期/Last Update: 2009-01-20