Wideband mm-wave Spectrum-Efficient Transmitter Using Low-Pass Sigma–Delta-Over-Fiber Architecture
Artikel i vetenskaplig tidskrift, 2023
generates baseband sigma-delta bitstreams, in-phase/quadrature (I/Q) components, which are transported to a remote radio head
(RRH) using a standard QSFP28 optical interconnect link connection. In the RRH, the baseband I/Q signals are upconverted to the millimeter-wave band, amplified, and transmitted through an antenna. The performance of the resulting sigma-delta-over-fiber transmitter architecture is experimentally verified at 28 GHz, demonstrating a state-of-the-art symbol rate up to 1.5 Gsym/s. Furthermore, in over-the-air measurements, the architecture is
shown to support 1 Gsym/s with 5.9% error vector magnitude for 64/256/1024 quadrature amplitude modulation cases over a 5 m wireless distance. The results demonstrate the feasibility of the proposed architecture for the realization of wideband millimeterwave distributed antenna systems.
millimeterwave.
Sigma-delta-over-fiber
over-the-air
Författare
Husileng Bao
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Filippo Ponzini
Ericsson AB
Christian Fager
Chalmers, Mikroteknologi och nanovetenskap, Mikrovågselektronik
Publicerad i
IEEE Microwave and Wireless Technology Letters
2771957X (ISSN) 27719588 (eISSN)
Vol. 33 Nummer/häfte 10 s. 1505-1508Kategorisering
Ämneskategorier (SSIF 2011)
Telekommunikation
Kommunikationssystem
Signalbehandling
Annan elektroteknik och elektronik
Identifikatorer
DOI
10.1109/LMWT.2023.3304479