Title :
Fast beam searching concept for indoor Terahertz communications
Author :
Bile Peng ; Priebe, Sebastian ; Kurner, Thomas
Author_Institution :
Tech. Univ. Braunschweig, Braunschweig, Germany
Abstract :
The Terahertz (THz) technology is a promising solution to future multiple Gigabit indoor communications because of its huge available bandwidth. To compensate the high path loss in the THz range, a phased array can be applied at both transmitter and receiver. The correct Angle of Arrival (AoA) and Angle of Departure (AoD) estimation is a prerequisite for maximizing the phased array benefits. The conflict between precision and computational effort, however, is difficult to balance. This paper introduces a fast and practical concept for the AoA and AoD estimation in 2 steps. In the first step, a preliminary estimation is carried out at a lower frequency via exhaustive scanning. After that, the precise angle is estimated at the actual frequency for the data transmission. An initialization protocol is formulated which determines the proper antenna configurations for the data transmission. This concept has been evaluated in a simple scenario using ray tracing simulations. The evaluation shows a satisfactory estimation precision.
Keywords :
antenna phased arrays; direction-of-arrival estimation; indoor radio; terahertz waves; angle of arrival estimation; angle of departure estimation; exhaustive scanning; fast beam searching concept; high path loss; indoor communications; indoor terahertz communications; initialization protocol; phased array; ray tracing simulations; Arrays; Estimation; Frequency estimation; Phased arrays; Receivers; Transmitters; Vectors; THz communication; angle of arrival estimation; antenna gain; phased array; ray tracing;
Conference_Titel :
Antennas and Propagation (EuCAP), 2014 8th European Conference on
Conference_Location :
The Hague
DOI :
10.1109/EuCAP.2014.6901840