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中文摘要：
现有异构网络传输控制协议不能准确估计网络状态,缺乏有效的丢包区分机制.为此,提出一种基于效用估计的丢包区分算法,并将其应用于多媒体业务TCP友好传输控制协议.该算法将网络状态估计算法和差异化丢包区分算法相结合,根据分组到达时间间隔估计当前网络的可用带宽,计算效用参数并估计网络状态,自适应地选取合理的区分机制,以准确区分无线-有线异构网络中拥塞/无线丢失,提升多媒体传输控制协议性能.实验部分比较了该算法与现有文献方法的仿真性能..
英文摘要：
The existing transmission control mechanism lacks effective method in net- work state estimation and packet loss differentiation. To deal with the problem, this paper proposes a loss differentiation algorithm （LDA）, utility based LDA （UBLDA） capable of estimating the network state （congestion or not） by calculating utility parameters based on the interval of packet arrival and sending rate. UBLDA can choose appropriate differentia- tion scheme based on the state estimation, and integrate with a TCP friendly transmission control protocol. It is a new multimedia transmission control mechanism suitable for wired- wireless heterogeneous networks. Simulations are performed to compare the performance of the proposed algorithm with existing methods.
同期刊论文项目
同项目期刊论文
AN ADAPTIVE OPPORTUNISTIC RETRANSMISSION CONTROL SCHEME ENVIRONMENT-AWARE-BASED FOR WIRELESS MULTIME
Local Semidefinite Programming based Node Localization System for Wireless Sensor Network Applicatio
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