Providing highly efficient underwater transmission of mass multimedia data is challenging due to the particularities of the underwater environment. Although there are many schemes proposed to optimize the underwater a...Providing highly efficient underwater transmission of mass multimedia data is challenging due to the particularities of the underwater environment. Although there are many schemes proposed to optimize the underwater acoustic network communication protocols, from physical layer, data link layer, network layer to transport layer, the existing routing protocols for underwater wireless sensor network(UWSN) still cannot well deal with the problems in transmitting multimedia data because of the difficulties involved in high energy consumption, low transmission reliability or high transmission delay. It prevents us from applying underwater multimedia data to real-time monitoring of marine environment in practical application, especially in emergency search, rescue operation and military field. Therefore, the inefficient transmission of marine multimedia data has become a serious problem that needs to be solved urgently. In this paper, A Layered Load Balance Routing Protocol(L2-LBMT) is proposed for underwater multimedia data transmission. In L2-LBMT, we use layered and load-balance Ad Hoc Network to transmit data, and adopt segmented data reliable transfer(SDRT) protocol to improve the data transport reliability. And a 3-node variant of tornado(3-VT) code is also combined with the Ad Hoc Network to transmit little emergency data more quickly. The simulation results show that the proposed protocol can balance energy consumption of each node, effectively prolong the network lifetime and reduce transmission delay of marine multimedia data.展开更多
异构无线网络接入技术的发展为移动流媒体技术应用带来了全新的机遇与挑战。流控制传输协议SCTP(Stream Control Transmission Protocol)的提出能够很好地实现异构无线网络间的透明无缝切换。为了研究未来泛在异构无线网络环境中的视频...异构无线网络接入技术的发展为移动流媒体技术应用带来了全新的机遇与挑战。流控制传输协议SCTP(Stream Control Transmission Protocol)的提出能够很好地实现异构无线网络间的透明无缝切换。为了研究未来泛在异构无线网络环境中的视频传输,设计了一种SCTP多宿环境下的流媒体QoS评测系统。实验结果表明,该方案能在异构无线网络环境下对不同网络拥塞和负载下的视频传输行为和服务质量进行有效的分析。展开更多
基金supported by the National Natural Science Foundation of China (No.61401413)the Digital Home Industry Cluster Oriented Technology Service Innovation Pilot Project in 2015
文摘Providing highly efficient underwater transmission of mass multimedia data is challenging due to the particularities of the underwater environment. Although there are many schemes proposed to optimize the underwater acoustic network communication protocols, from physical layer, data link layer, network layer to transport layer, the existing routing protocols for underwater wireless sensor network(UWSN) still cannot well deal with the problems in transmitting multimedia data because of the difficulties involved in high energy consumption, low transmission reliability or high transmission delay. It prevents us from applying underwater multimedia data to real-time monitoring of marine environment in practical application, especially in emergency search, rescue operation and military field. Therefore, the inefficient transmission of marine multimedia data has become a serious problem that needs to be solved urgently. In this paper, A Layered Load Balance Routing Protocol(L2-LBMT) is proposed for underwater multimedia data transmission. In L2-LBMT, we use layered and load-balance Ad Hoc Network to transmit data, and adopt segmented data reliable transfer(SDRT) protocol to improve the data transport reliability. And a 3-node variant of tornado(3-VT) code is also combined with the Ad Hoc Network to transmit little emergency data more quickly. The simulation results show that the proposed protocol can balance energy consumption of each node, effectively prolong the network lifetime and reduce transmission delay of marine multimedia data.
文摘异构无线网络接入技术的发展为移动流媒体技术应用带来了全新的机遇与挑战。流控制传输协议SCTP(Stream Control Transmission Protocol)的提出能够很好地实现异构无线网络间的透明无缝切换。为了研究未来泛在异构无线网络环境中的视频传输,设计了一种SCTP多宿环境下的流媒体QoS评测系统。实验结果表明,该方案能在异构无线网络环境下对不同网络拥塞和负载下的视频传输行为和服务质量进行有效的分析。
