A Practical Tree Algorithm With Successive Interference Cancellation for Delay Reduction in IEEE 802.16 Networks

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This paper thoroughly studies a modification of tree algorithm with successive interference cancellation. In particular, the authors focus on the algorithm throughput and account for a single signal memory location, as well as cancellation errors of three types. The resulting scheme is robust to imperfect interference cancellation and is tailored to the uplink bandwidth request collision resolution in an IEEE 802.16 cellular network. The mean packet delay is shown to be considerably reduced when using the proposed approach.