• 中国计算机学会会刊
  • 中国科技核心期刊
  • 中文核心期刊

J4 ›› 2008, Vol. 30 ›› Issue (3): 50-53.

• 论文 • 上一篇    下一篇

基于CDMA网络的自适应图像传输算法

刘高平[1] 朱丽军[2]   

  • 出版日期:2008-03-01 发布日期:2010-05-19

  • Online:2008-03-01 Published:2010-05-19

摘要:

针对CDMA环境多变和带宽分配的特点,本文提出了一种自适应图像传输算法。发送端通过接收端反馈的TCP数据包判断网络状况,结合CDMA网络中传输数据帧长特征,调节UDP数据包的发送时间和数据包大小,从而自适应CDMA网络带宽的变化,充分利用网络的可靠带宽。最后,给出了算法的测试结果。测试结果表明,该算法能够快速地跟随CDMA网 网络带宽变化,也可以应用于其它窄变带宽的网络中。

关键词: CDMA网络 自适应算法 图像传输

Abstract:

Aiming at the characteristics of the unstable environment and bandwidth distribution of CDMA, this paper proposes a self-adaptive algorithm for image transmission. The transmitter judges the network situation through the feedback information of the TCP packets from the receiver, and adjusts the sendin  g time and size of the UDP packets, combining with the data transmission frame characteristics in the CDMA network, and thus adapts to the bandwidth movement of the CDMA network and takes full advantage of the reliable bandwidth of the network. The test results of the algorithm is presented in the end,w hich shows that this algorithm is fast in following the network bandwidth and can be applied to other networks with narrow and changeable bandwidths.

Key words: CDMA network, self-adaptive algorithm, image transmission