Self-adaptive algorithm for image transmission based on narrow and variable bandwidth

With the development of networks, network bandwidth is increasing endlessly, but it appears narrow relative to the growing demand, and because of the environmental impact, the size of bandwidth is always changing. This paper presents a narrow bandwidth variable adaptive image transmission algorithm with an example of CDMA Network. Aiming at the environment variable and bandwidth allocation characters of CDMA Network, the transmitter terminal determines the network status through the TCP data packets feedback from the receiver, and adjusts UDP packets transmission time and packet size with the data frame length feature of CDMA network, thus adapts for the CDMA network bandwidth changes. Finally, the paper gives the test results of the algorithm. Test results show that the algorithm can quickly follow the changes of network bandwidth, and make full use of reliable bandwidth of CDMA network.