TY - GEN
T1 - Optimal transmit spectra for communication in the presence of crosstalk
AU - Gaikwad, Rohit V.
AU - Baraniuk, Richard G.
N1 - Funding Information:
This work was suppoaed by the National Science Foundation, grant no. MIP-9457438, Nand Networks, and SBC Communications. Email: {rohitg, richb}@rice.edu Web www.dsp.rice.edu Fig. 1. NEXTand E X T between neighboring lines in a binder. Tx's are msm'tters and Rx's are receivers.
Funding Information:
This work was supported by the National Science Foundation, grant no. MIP-9457438, Nortel Networks, and SBC Communications
Publisher Copyright:
© 1999 IEEE.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 1999/6
Y1 - 1999/6
N2 - We present a general framework for designing optimal transmit spectra for symmetric bit-rate communication services dominated by crosstalk, in particular Digital Subscriber Line (DSL) services such as the proposed HDSL2. Using the channel, noise, and interference transfer functions, we set up and solve an optimization problem to maximize the joint capacity of neighboring lines. Joint signaling techniques and optimal power distribution yield significant gains in bit rates (or performance margins) over current schemes. Furthermore, by design, the spectra are spectrally compatible with existing neighboring services. The framework is quite general -it does not depend on the exact choice of modulation scheme, for example. It is also extremely simple and of low computational complexity.
AB - We present a general framework for designing optimal transmit spectra for symmetric bit-rate communication services dominated by crosstalk, in particular Digital Subscriber Line (DSL) services such as the proposed HDSL2. Using the channel, noise, and interference transfer functions, we set up and solve an optimization problem to maximize the joint capacity of neighboring lines. Joint signaling techniques and optimal power distribution yield significant gains in bit rates (or performance margins) over current schemes. Furthermore, by design, the spectra are spectrally compatible with existing neighboring services. The framework is quite general -it does not depend on the exact choice of modulation scheme, for example. It is also extremely simple and of low computational complexity.
KW - Capacity
KW - Digital Subscriber Line (xDSL) systems
KW - Multiuser interference
UR - http://www.scopus.com/inward/record.url?scp=3543104501&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=3543104501&partnerID=8YFLogxK
U2 - 10.1109/CTMC.1999.790245
DO - 10.1109/CTMC.1999.790245
M3 - Conference contribution
AN - SCOPUS:3543104501
T3 - 1999 IEEE Communications Theory Mini-Conference - Conference Record
SP - 101
EP - 105
BT - 1999 IEEE Communications Theory Mini-Conference - Conference Record
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 8th IEEE Communications Theory Mini-Conference
Y2 - 6 June 1999 through 10 June 1999
ER -