Priority protection of wavelet transformed video over ATM

We have developed an error-resilient transmission technique, called priority protection, that offers a different level of protection to each segment of an incoming data stream according to its importance. Even though a certain group of ATM cells are lost during transmission, the original data segment can be fully reconstructed with the protection scheme. The length of each data portion and its level of protection are user-definable in the developed simulator. We have tested the proposed scheme with a sequence of wavelet transformed images, as a wavelet transformed image consists of a number of subbands, of which each can be classified into a different priority level. This paper describes what the proposed scheme, priority protection, is, and how well a wavelet transformed image is protected with the scheme at a certain cell loss rate