| Abstract: | A common problem of all wireless digital datatransmission systems is the bit error rates of the radiosubsystem, which can be several orders of magnitudehigher than for a wire- or fiber-based technology. Forward error correction (FEC), automaticrepeat request (ARQ), and interleaving are used as meansto improve throughput and bandwidth efficiency. Thispaper presents some considerations on the optimization and adaptation of these algorithms with focuson recent wireless ATM developments. The optimization,with respect to the target bit error rate and themapping of the wireless connection quality to the ATM quality of service (QoS) concept, is discussedin detail. In addition to the theoretical evaluation,which is verified by extensive simulations, we presentcomprehensive architecture and implementation considerations on the design of an adaptiveerror control system for a wireless ATMnetwork. |
