Error control techniques for wireless ATM networks

Wireless ATM (Asynchronous Transfer Mode) is an emerging technology where cells are transmitted over wireless channels and part(s) of the connection lies in the wireless network. This introduction of ATM in wireless environment creates many interesting challenges including how to deal with wireless links with possible high and variable error rates. The problem arises as ATM was designed for very low error rate environment and hence does not provide strong error control. This paper discusses error control schemes that can be used in wireless ATM networks. Several major issues including the overhead, delay and impact of an error control scheme on the quality of service are also discussed. The factors that need to be considered in selecting an appropriate error control technique for a certain environment are also identified.