Line Topology Identification Using Multiobjective Evolutionary Computation

The broadband capacity of the twisted-pair lines strongly varies within the copper access network. It is therefore important to assess the ability of a digital subscriber line (DSL) to support the DSL services prior to deployment. This task is handled by the line qualification procedures, where the identification of the line topology is an important part. This paper presents a new method, denoted topology identification via model-based evolutionary computation (TIMEC), for line topology identification, where either one-port measurements or both one-and two-port measurements are utilized. The measurements are input to a model-based multiobjective criterion that is minimized by a genetic algorithm to provide an estimate of the line topology. The inherent flexibility of TIMEC enables the incorporation of a priori information, e. g., the total line length. The performance of TIMEC is evaluated by computer simulations with varying degrees of information. Comparison with a state-of-art method indicates that TIMEC achieves better results for all the tested lines when only one-port measurements are used. The results are improved when employing both one-and two-port measurements. If a rough estimate of the total length is also used, near-perfect estimation is obtained for all the tested lines.

TEKNIK OCH TEKNOLOGIER Elektroteknik och elektronik hsv//swe
ENGINEERING AND TECHNOLOGY Electrical Engineering, Electronic Engineering, Information Engineering hsv//eng
multiobjective optimization
single-ended line testing
(SELT)
identification
line topology
line qualification (LQ)
evolutionary computation
Digital subscriber line (DSL)
double-ended line testing (DELT)

Rodrigues, Roberto M.Federal University of Pará (författare)
Lindqvist, FredrikLund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)eit-flq (författare)
Costa, JoaoFederal University of Pará (författare)
Klautau, AldebaroFederal University of Pará (författare)
Ericson, KlasEricsson AB (författare)
Rius i Riu, JaumeEricsson AB (författare)
Börjesson, Per OlaLund University,Lunds universitet,Institutionen för elektro- och informationsteknik,Institutioner vid LTH,Lunds Tekniska Högskola,Department of Electrical and Information Technology,Departments at LTH,Faculty of Engineering, LTH(Swepub:lu)tde-pbo (författare)
Federal University of ParáInstitutionen för elektro- och informationsteknik (creator_code:org_t)

Ingår i:IEEE Transactions on Instrumentation and Measurement59:3, s. 715-7290018-9456

Av författaren/redakt...: Sales, Claudomir ...; Rodrigues, Rober ...; Lindqvist, Fredr ...; Costa, Joao; Klautau, Aldebar ...; Ericson, Klas; visa fler...; Rius i Riu, Jaum ...; Börjesson, Per O ...; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.