Abstract
Since wireless channel is always band-limited with multi-path fading and highly burst errors, flexible error control is needed in wireless asynchronous transfer mode (WATM) networks. This paper proposes a hybrid automatic repeat request (ARQ) strategy using rate-compatible punctured convolutional (RCPC) codes, which has on-demand quality of services (QoS). In order to increase the throughput of WATM networks, the packet size for the retransmission of ARQ protocol varies according to the types of services, and the coding rate for the payload of the WATM cell is adjusted to match the varying channel. In case of cell loss rate (CLR) being constrained, such as 10/sup -6/, the throughput is analyzed and found to be better than the existing schemes.
Published Version
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