Modular spectrum utilization for next-generation fixed transmission networks
department or school: Applied Science, Faculty of
department or school: Electrical and Computer Engineering, Department of
data provider: DSpace
degree campus: UBCV
creator: Naterer, Jordan
issued: 2020-08-12T23:15:53Z
issued: 2020
related degree: Master of Applied Science - MASc
degree grantor: University of British Columbia
description: Internet application and mobile service demands have continuously driven the need for increased data rates throughout global communication networks. One bottleneck of global network capacity is the backhaul network, which is responsible for connecting intermediate links throughout the core network. The backhaul network is commonly established either via high capacity optical fibre lines or low cost fixed microwave wireless antennas. Due to their low cost, microwave links are currently used for over 50% of the world's backhaul networks, as opposed to optical fibre connections. However, these links must follow strict regulation on the wireless bandwidths and pulse shapes they are allowed to occupy. The goal of this thesis is to improve the spectral efficiency within a transmission channel's regulated pulse shapes. The spectrum regions we intend to utilize are the sidebands outside the primary pulse, or spectrum "skirts''. While these skirts are commonly intended for adjacent channel usage, it has been shown that they typically go unused. We investigate two modular methods to take advantage of these unused sidebands, a superposition and multi-carrier approach. While the first method overlaps a primary and secondary pulse in the time domain, the other places the pulses adjacent to one another in the frequency domain. The superposition method must deal with the interference caused by overlapping pulse shapes. Simulations show that the primary stream cancellation is essential to this system's performance. The multi-carrier method requires custom pulse shapes that fit under the spectrum mask to match performance. Simulation results demonstrate that without phase noise impairments, the superposition scheme yields the highest performance. However when transmitting with phase noise, the multi-carrier scheme is predicted to transmit the most data under practical channel conditions.
aggregated CHO: https://circle.library.ubc.ca/rest/handle/2429/75502
note: Modular Spectrum Utilization for Next-GenerationFixed Transmission NetworksbyJordan NatererB. Eng., Memorial University of Newfoundland, 2018A THESIS SUBMITTED IN PARTIAL FULFILLMENTOF THE REQUIREMENTS FOR THE DEGREE OFMaster of Applied ScienceinTHE FACULTY OF GRADUATE AND POSTDOCTORALSTUDIES(Electrical and Computer Engineering)The University of British Columbia(Vancouver)August 2020c© Jordan Naterer, 2020The following individuals certify that they have read, and recommend to the Fac-ulty of Graduate and Postdoctoral Studies for acceptance, the thesis entitled:Modular SpectrumUtilization for Next-Generation Fixed Trans-mission Networkssubmitted by Jordan Naterer in partial fulfillment of the requirements for thedegree of Master of Applied Science in Electrical and Computer Engineering.Examining Committee:Lutz Lampe, Electrical EngineeringSupervisorJahangir Hossain, Electrical EngineeringSupervisory Committee MemberiiAbstractInternet application and mobile service demands have continuously driven theneed for increased data rates throughout global communication networks. Onebottleneck of global network capacity is the backhaul network, which is responsi-ble for connecting intermediate links throughout the core network. The backhaulnetwork is commonly established either via high capacity optical fibre lines or lowcost fixed microwave wireless antennas. Due to their low cost, microwave linksare currently used for over 50% of the world’s backhaul networks, as opposed tooptical fibre connections. However, these links must follow strict regulation onthe wireless bandwidths and pulse shapes they are allowed to occupy.The goal of this thesis is to improve the spectral efficiency within a transmis-sion channel’s regulated pulse shapes. The spectrum regions we intend to utilizeare the sidebands outside the primary pulse, or spectrum “skirts”. While theseskirts are commonly intended for adjacent channel usage, it has been shown thatthey typically go unused. We investigate two m…
has type: Thesis/Dissertation
date issued: 2020-11
is shown at: 10.14288/1.0392708
language: eng
degree discipline: Electrical Engineering
provider: Vancouver : University of British Columbia Library
publisher: University of British Columbia
rights: Attribution-NonCommercial-NoDerivatives 4.0 International
rights URI: http://creativecommons.org/licenses/by-nc-nd/4.0/
scholar level: Graduate
type: Text
identifier URI: http://hdl.handle.net/2429/75502