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In this study, the authors propose a novel dynamic channel assignment scheme called graph colouring based fractional frequency reuse (GC-FFR) to improve system performance for the downlink of enterprise femtocell networks based on orthogonal frequency division multiple access with frequency division duplex. In order to mitigate co-tier interference from neighbour femtocell access points, the proposed...
In this paper, we investigate the performance of the Mobile Multi-hop Relay (MMR) uplink (UL) system with a non-transparent mode Relay Station (RS) which is used for coverage extension. We first develop analytical models to calculate the blocking probability and the utilization of the access zone in UL subframe. Based on that, the outage probability of the system is simulated. Performance is presented...
In this paper, we investigate the performance of a reuse partitioning (RUP) based cellular uplink system in a multicell environment. In a RUP scheme, a cell is divided into several concentric regions and each region has a different reuse factor. The model presented in this paper accounts for channel selection of a mobile station (MS) using a two-dimensional Markov, and co-channel interference (CCI)...
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