On capacity of OFDMA-based IEEE802.16 WiMAX including Adaptive Modulation and Coding (AMC) and inter-cell interference

Abstract

Abstract-We study in this paper the capacity of the downlink of OFDMA-based IEEE802.16 WiMAX system in the presence of two types of traffic, streaming and elastic. We focus in particular on the impact of Adaptive Modulation and Coding (AMC) as well as inter-cell interference resulting from different frequency reuse schemes. Several performance measures, namely blocking rates, mean transfer time and the mean number of collisions between two OFDMA WiMAX cells, are then derived and quantified. We show that reuse partitioning results in a lower blocking probability for streaming flows in the inner region but a much higher one for elastic flows in the outer region; the overall cell throughput increases meaning that the decrease in the number of collisions improves the overall throughput.

A Comparative Survey on Wireless Internet Usage and Future Expectations of University Students -The Cases of USF, AKU and IUS

“…Most generally, it is caused by either another wireless signal or self-interference. In literature, interference avoidance (Lopez-Perez, 2009) and operation while allowing interference (Tarhini, Chadi and Tijani, 2007) are two popular approaches in dealing with this issue. However, since they need to allocate a significant part of the spectral resources for a reliable communication, they may not be considered spectrally efficient methods.…”

Simulation and Emulation Approach for the Performance Evaluation of Adaptive Modulation and Coding Scheme in Mobile WiMAX Network

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Call Admission Control Algorithms Based on Random Waypoint Mobility for IEEE802.16e Networks

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