Coordinated Dual-Layer Beamforming for Public Safety Network: Architecture and Algorithms

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Executive Summary

The revolutionary success of commercial broadband wireless network has spurred significant interest in employing related technologies such as 3GPP Long Term Evolution (LTE) technologies to build a nationwide mobile broadband network for public safety entities. The successful deployment and operation of a public safety network, however, are more challenging than the traditional commercial wireless networks due to the high reliability and security requirements, unpredictable traffic patterns, and fast time-varying user population density. In this paper, the authors propose a framework of coordinated dual-layer beamforming schemes to address these challenges. The distinct features of the proposed systems are detailed and the architecture and realization are discussed.

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