A Queueing Analysis of Polling Based for Mobile Multihop Relay WiMAX Networks

By employing a relay station (RS) on the WiMAX networks, it offers an extended coverage and improved capacity over wireless broadband. However the mobile station (MS) such that connected to the RS has effect the system performance due to increase of the MS numbers. In WiMAX the base station (BS) adopts the centralized-based polling mode where the best way to guarantee the delay bound is by polling in every frame. Through the polling approach, the BS allocated dedicated or shared resources periodically to each MS, which can be used to request resources. Therefore in centralized-based polling MAC a few parameters become important factor to determine the performance of IEEE802.16j. This paper analyze the queue based polling for multi-hop relay in WIMAX networks in order to minimize the average polling delay while increase network throughput, based on tandem queue analysis. The product-form solution applied is valid since the models related to M/M/1. The numerical results showed that numbers of poll is affect by analyzed under various number of MS.

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