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This paper presents two hub polling medium access control protocols for wireless local area networks based on the robust super poll protocol. The proposed protocols decrease the overhead and increase the throughput through eliminating broadcasting the polling list every super frame and eliminating the use of the chaining mechanism that is utilized in the robust super poll protocol in which all the remaining polling list is appended to every data frame that is sent by every station. The performance analysis of the two proposed protocols is introduced to evaluate their performance compared with Robust Super Poll protocol. The mathematical analysis and the experimental results show that the proposed protocols give higher throughput and lower overhead than Robust Super Poll protocol.

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