TY - JOUR
T1 - Parametric spectrum shaping for downstream spectrum management of Digital Subscriber Lines
AU - Naparstek, Oshri
AU - Cohen, Kobi
AU - Leshem, Amir
PY - 2012/3
Y1 - 2012/3
N2 - The performance of Digital Subscriber Line (DSL) systems is tightly dependent on network deployment. The users (lines) in the binder create mutual interference, thus decreasing the rates of all users. The Optimal Spectrum Balancing (OSB) algorithm solves the spectrum management problem to increase user rates. However, the computational complexity of the OSB algorithm is extremely high. In this paper we introduce a novel low-complexity sub-optimal algorithm, dubbed PArametric Spectrum Shaping (PASS). The complexity of the suggested algorithm is independent of the number of tones. Simulation results show that the PASS algorithm matches OSB performance in many typical DSL scenarios.
AB - The performance of Digital Subscriber Line (DSL) systems is tightly dependent on network deployment. The users (lines) in the binder create mutual interference, thus decreasing the rates of all users. The Optimal Spectrum Balancing (OSB) algorithm solves the spectrum management problem to increase user rates. However, the computational complexity of the OSB algorithm is extremely high. In this paper we introduce a novel low-complexity sub-optimal algorithm, dubbed PArametric Spectrum Shaping (PASS). The complexity of the suggested algorithm is independent of the number of tones. Simulation results show that the PASS algorithm matches OSB performance in many typical DSL scenarios.
KW - Digital Subscriber Line
KW - Discrete multi-tone modulation
KW - Dynamic spectrum management
KW - Interference channel
KW - Near-far scenario
UR - http://www.scopus.com/inward/record.url?scp=84858306719&partnerID=8YFLogxK
U2 - 10.1109/LCOMM.2012.011312.111939
DO - 10.1109/LCOMM.2012.011312.111939
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AN - SCOPUS:84858306719
SN - 1089-7798
VL - 16
SP - 417
EP - 419
JO - IEEE Communications Letters
JF - IEEE Communications Letters
IS - 3
M1 - 6134702
ER -