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


Phase noise


Giuseppe Durisi

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Alberto Tarable

Consiglo Nazionale Delle Richerche

Christian Camarda

Politecnico di Torino

Rahul Devassy

Chalmers, Signaler och system, Kommunikations- och antennsystem, Kommunikationssystem

Guido Montorsi

Politecnico di Torino

IEEE Transactions on Communications

0090-6778 (ISSN)

Vol. 62 3 920-929 6730898


Informations- och kommunikationsteknik



Elektroteknik och elektronik



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