Random-phase beamforming for initial access in millimeter-wave cellular networks
Paper in proceeding, 2016

The utilization of the millimeter-wave frequency band (mm-wave) in the fifth generation ({5G}) of mobile communication is a highly-debated current topic. Mm-wave MIMO systems will use arrays with large number of antennas at the transmitter and the receiver, implemented on a relatively small area. With the inherent high directivity of these arrays, algorithms to help the user equipment find the base station and establish a communication link should be carefully designed. Towards that, we examine two beamforming schemes, namely, random-phase beamforming (RPBF) and directional beamforming (DBF), and test their impact on the Cram\'er-Rao lower bounds (CRB) of jointly estimating the direction-of-arrival, direction-of-departure, time-of-arrival, and the complex channel gain, under the line-of-sight channel model. The results show that the application of RPBF is more appropriate in the considered scenario as it attains a lower CRB with fewer beams compared to DBF.

Author

Z. Abu-Shaban

Australian National University

Henk Wymeersch

Chalmers, Signals and Systems, Communication, Antennas and Optical Networks

X. Zhou

Australian National University

G. Seco-Granados

Universitat Autonoma de Barcelona (UAB)

T. Abhayapala

Australian National University

Proceedings - IEEE Global Communications Conference, GLOBECOM

23340983 (ISSN) 25766813 (eISSN)

7842197
978-1-5090-1328-9 (ISBN)

2016 IEEE Global Communications Conference (GLOBECOM)
Washigton, D.C., USA,

High precision positioning for cooperative ITS applications

European Commission (EC) (EC/H2020/636537), 2015-01-01 -- 2017-12-31.

Subject Categories

Telecommunications

Communication Systems

Computer Systems

Condensed Matter Physics

DOI

10.1109/GLOCOM.2016.7842197

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