Distributed Beamforming Using Multi-Antenna Backscattering Network

In this paper, the authors propose two novel beam-forming methodologies, which employ passive RF devices to enhance received signal through a passive, scattering based beam forming. Currently available backscattering systems, e.g. the Radio Frequency IDentification (RFID), suffer from a poor communication in an environment with multiple passive devices. The intermediate antennas create severe scattering environment with nulls. In contrast, the proposed approach changes the scattering properties of a subset of the multiple antennas such that the received signal strength and quality is maximized.

Provided by: Creative Commons Topic: Mobility Date Added: Jan 2015 Format: PDF

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