Mobility

An Adaptive Time Slot Allocation for Statistical QoS Guarantees in Wireless Networks Using Crosslayer Approach

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Executive Summary

Quality of Service (QoS) guarantees plays a critically important role in mobile wireless networks. For the real time services like multimedia video conference, the key QoS metric is to ensure a stringent delay-bound rather than high spectral efficiency. In this paper, a cross-layer approach is proposed to investigate the impact of physical-layer infrastructure on data-link layer QoS performance over wireless links. At the physical-layer a Single-Input-Single-Output (SISO) diversity scheme as well as Adaptive Modulation and Coding (AMC) techniques is taken into account. At the data-link layer, the focus is on how the physical-layer infrastructure influences the real-time multimedia delay-bound QoS performance.

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