Title :
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
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;
Conference_Titel :
Global Telecommunications Conference, 2003. GLOBECOM '03. IEEE
Print_ISBN :
0-7803-7974-8
DOI :
10.1109/GLOCOM.2003.1258557
