Capacity bounds for MIMO microwave backhaul links affected by phase noise
Artikel i vetenskaplig tidskrift, 2014

We present bounds and a closed-form high-SNR expression for the capacity of multiple-antenna systems affected by Wiener phase noise. Our results are developed for the scenario where a single oscillator drives all the radio-frequency circuitries at each transceiver (common oscillator setup), the input signal is subject to a peak-power constraint, and the channel matrix is deterministic. This scenario is relevant for line-of-sight multiple-antenna microwave backhaul links with sufficiently small antenna spacing at the transceivers. For the 2 by 2 multiple-antenna case, for a Wiener phase-noise process with standard deviation equal to 6 degrees, and at the medium/high SNR values at which microwave backhaul links operate, the upper bound reported in the paper exhibits a 3 dB gap from a lower bound obtained using 64-QAM. Furthermore, in this SNR regime the closed-form high-SNR expression is shown to be accurate.

Wiener process

microwave backhaul links

capacity

Phase noise

Författare

Giuseppe Durisi

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Alberto Tarable

Consiglo Nazionale Delle Richerche

Christian Camarda

Politecnico di Torino

Rahul Devassy

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Guido Montorsi

Politecnico di Torino

IEEE Transactions on Communications

0090-6778 (ISSN)

Vol. 62 3 920-929 6730898

Styrkeområden

Informations- och kommunikationsteknik

Ämneskategorier

Kommunikationssystem

Elektroteknik och elektronik

DOI

10.1109/TCOMM.2014.012014.130745