Title :
Aligned precoder designs for interference channels based on chordal distance
Author :
Alnajjar, Khawla ; Aggarwa, Vaneet ; Vaishampayan, Vinay A. ; Wang, Xiaodong
Author_Institution :
Dept. of Electr. Eng., Columbia Univ., New York, NY, USA
Abstract :
In order to manage interference in the K-user interference channel we study optimal interference aligned solutions using a modified version of the chordal distance between the signal and the interference space as a metric. A locally optimal algorithm to optimize this distance is described. The proposed metric and algorithm are validated by an improvement in the probability of error as compared to the baseline aligned solution.
Keywords :
error statistics; precoding; radiofrequency interference; wireless channels; K-user interference channel; aligned precoder designs; chordal distance; error probability; interference space; locally optimal algorithm; optimal interference; signal space; Artificial neural networks; Heating; Interference; Receivers; Weaving; Chordal distance; Grasmannian packing; Interference Channel; Precoder;
Conference_Titel :
Information Sciences and Systems (CISS), 2012 46th Annual Conference on
Conference_Location :
Princeton, NJ
Print_ISBN :
978-1-4673-3139-5
Electronic_ISBN :
978-1-4673-3138-8
DOI :
10.1109/CISS.2012.6310842
