Localization and Throughput Trade-Off in a Multi-User Multi-Carrier mm-Wave System
Journal article, 2019

© 2013 IEEE. In this paper, we propose various localization error optimal beamforming strategies and subsequently study the trade-off between data and localization services while budgeting time and frequency resources in a multi-user millimeter-wave framework. Allocating more resources for the data service phase instead of localization would imply higher data rate but, concurrently, also a higher position and orientation estimation error. In order to characterize this trade-off, we firstly derive a flexible application-dependent localization error cost function combining the Cramér-Rao lower bounds of delay, angle of departure and/or angle of arrival estimates at a mobile receiver over the downlink. Consequently we devise different fairness criteria based localization error optimal beamforming strategies in a multi-user context. Finally, we show the advantage of the latter beamforming strategies and assess the communication-localization trade-off with respect to various time-frequency resource division schemes.

Beam steering

millimeter wave communication

MIMO

localization

Cramér-Rao bounds

Author

Remun Koirala

University of Bologna

University of Rennes 1

The French Alternative Energies and Atomic Energy Commission (CEA)

B. Denis

The French Alternative Energies and Atomic Energy Commission (CEA)

Bernard Uguen

University of Rennes 1

Davide Dardari

University of Bologna

Henk Wymeersch

Chalmers, Electrical Engineering, Communication and Antenna Systems, Communication Systems

IEEE Access

2169-3536 (ISSN)

Vol. 7 167099-167112 8902085

Subject Categories

Telecommunications

Communication Systems

Signal Processing

DOI

10.1109/ACCESS.2019.2953777

More information

Latest update

1/20/2020