Simplified power allocation and TX/RX structure for MIMO-DSL

Author

Cendrillon, Raphael ; Moonen, Marc ; Suciu, Radu ; Ginis, George

Author_Institution

ESAT, Katholieke Univ., Leuven, Heverlee, Belgium

Volume

4

fYear

2003

fDate

1-5 Dec. 2003

Firstpage

1842

Abstract

We investigate power allocation and crosstalk cancellation for MIMO-DSL (a.k.a. bonded-DSL) systems. Exploiting a property of the DSL channel, namely column-wise diagonal dominance, allows us to simplify the power allocation and crosstalk cancellation problems. This leads to a significant reduction in initialisation and run-time complexity whilst maintaining near-optimal performance. We. develop a bound which relates the deviation of the simplified power allocation to the degree of column-wise diagonal dominance. Reliable transmission at near-capacity data-rates is also demonstrated through simulation.

Keywords

MIMO systems; computational complexity; crosstalk; digital subscriber lines; interference suppression; receivers; resource allocation; transmitters; MIMO-DSL; TX/RX structure; bonded-DSL; columnwise diagonal dominance; crosstalk cancellation; initialisation complexity; power allocation; run-time complexity; Additive noise; Bonding; Crosstalk; DSL; Frequency; Instruments; OFDM modulation; Performance gain; Power system modeling; Runtime;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE

Print_ISBN

0-7803-7974-8

Type

conf

DOI

10.1109/GLOCOM.2003.1258557

Filename

1258557