Does LO Noise Floor Limit Performance in Multi-Gigabit Millimeter-Wave Communication?
Artikel i vetenskaplig tidskrift, 2017

Extremely high data rate communication can potentially be achieved by combining high-order modulations and wide bandwidths at millimeter-wave (mm-wave) frequencies. However, it has been challenging to practically implement this combination, even if the SNR of the system appears to be sufficiently high. An explanation from a recent theoretical study is that the practical data rates in mm-wave systems are limited by the local oscillator (LO) white phase noise. In this letter, we present an experimental investigation on whether the white noise floor of frequency multiplied LO sources is a major noise contribution to wideband signals. Hardware measurements are performed using multi-gigabit 64 quadrature amplitude modulation (QAM) signals. The measured results show that the transmitter performance degrades as the LO noise floor increases. Hence, the LO noise floor is identified to be one primary limitation for achieving the highest possible data rate in wideband mm-wave systems.

Författare

Jingjing Chen

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Zhongxia Simon He

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Dan Kuylenstierna

Chalmers, Mikroteknologi och nanovetenskap (MC2)

Thomas Eriksson

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

Mikael Hörberg

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Thomas Emanuelsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Thomas Swahn

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

Herbert Zirath

Chalmers, Mikroteknologi och nanovetenskap (MC2), Mikrovågselektronik

IEEE Microwave and Wireless Components Letters

1531-1309 (ISSN)

Vol. 27 8 769-771

Styrkeområden

Informations- och kommunikationsteknik

Nanovetenskap och nanoteknik

Ämneskategorier

Kommunikationssystem

Elektroteknik och elektronik

DOI

10.1109/LMWC.2017.2724853

Mer information

Senast uppdaterat

2018-08-24