Antenna diversity using single antenna in robot communication

Authors:
Yusuf Ozturk;Vaibhav Nagarnaik
Affiliations:
San Diego State University, Electrical and Computer Engineering Department, 5500 Campanile Drive, San Diego, CA 92182-1309, United States;San Diego State University, Electrical and Computer Engineering Department, 5500 Campanile Drive, San Diego, CA 92182-1309, United States
Venue:
Digital Signal Processing
Year:
2010

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Abstract

This study proposes to exploit multipath signals by repositioning a robot relay node within a quarter to one wavelength from its current position to improve signal quality. By mobilizing the communication node we offer a complementary solution to antenna diversity in environments where antenna diversity cannot be employed. The signal strength characterization is performed over a small area to study the impact of relocation of the node by a quarter to one wavelength. A new conjugate gradient search algorithm for exploiting combined multipath fading is proposed to improve signal quality between a mobile station and a set of other stations - mobile or fixed.