Reliable Positioning and mmWave Communication via Multi-Point Connectivity

One of the key elements of future 5G and beyond mobile technology is millimeter-wave (mmWave) communications, which is targeted to extreme high-data rate services. Furthermore, combining the possibility of a wideband signal transmission with the capability of pencil-beamforming, mmWave technology is key for accurate cellular-based positioning. However, it is also well-known that at the mmWave frequency band the radio channel is very sensitive to line-of-sight blockages giving rise to unstable connectivity and inefficient communication. In this paper, we tackle the blockage problem and propose a solution to increase the communication reliability by means of a coordinated multi-point reception. We also investigate the advantage of this solution in terms of positioning quality. More specifically, we describe a robust hybrid analog–digital receive beamforming strategy to combat the unavailability of dominant links. Numerical examples are provided to validate the efficiency of our proposed method.

Authors:
Kumar Dileep, Saloranta Jani, Kaleva Jarkko, Destino Giuseppe, Tölli Antti

Publication type:
A1 Journal article – refereed

Place of publication:

Keywords:
5G positioning, beamforming, blockage, coordinated multi-point, mmWave MIMO

Published:
16 November 2018

Full citation:
Kumar, D., Saloranta, J., Kaleva, J., Destino, G., Tölli, A. (2018) Reliable Positioning and mmWave Communication via Multi-Point Connectivity. Sensors, 18 (11), 4001. doi:10.3390/s18114001

DOI:
https://doi.org/10.3390/s18114001

Read the publication here:
http://urn.fi/urn:nbn:fi-fe201902286516