Cross-layer Resource Allocation Scheme for Multi-band High Rate UWB Systems

Details Cross-layer Resource Allocation Scheme for Multi-band High Rate UWB Systems Cross-layer Resource Allocation Scheme for Multi-band High Rate UWB Systems

2009-07-22

arxiv.org/abs/0907.3793v1

Computer Science

Networking and Internet Architecture

Scientific paper

In this paper, we 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, we support traffic with quality of service (QoS) guarantee in a multi-user context. Second, we exploit the effective SINR method that represents the characteristics of multiple sub-carrier 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. In addition, this new approach solves the problem of the cohabitation of more than three users in the same WiMedia channel.

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