Cross-Layer Resource Allocation Scheme for Multi-Band High Rate UWB Systems

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Executive Summary

In this paper, the authors investigate the use of a cross-layer allocation mechanism for the high-rate Ultra-WideBand (UWB) systems. The aim of this paper is twofold. First, through the cross-layer approach that provides a new service differentiation approach to the fully distributed UWB systems, they support traffic with Quality of Service (QoS) guarantee in a multi-user context. Second, they exploit the effective SINR method that represents the characteristics of multiple subcarrier SINRs in the multi-band WiMedia solution proposed for UWB systems, in order to provide the channel state information needed for the multi-user sub-band allocation. This new approach improves the system performance and optimizes the spectrum utilization with a low cost data exchange between the different users while guaranteeing the required QoS.

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