Title :
Linear interference alignment based on signal and interference space ranks
Author_Institution :
Coll. of Electron. Inf. & Control Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
In this paper, we discuss the implementation problem of interference alignment with low complexity. Firstly, interference system model based on signal and interference space is analyzed. Then, the design of chordal distance based linear precoder and receiver filter based on the optimization problem of rank of interference space are presented. Simulation results confirm that the sum rate of linear interference alignment is close to the iterative alignment scheme, but the computation complexity can be reduced greatly.
Keywords :
communication complexity; filtering theory; iterative methods; linear codes; optimisation; precoding; radiofrequency interference; chordal distance based linear precoder; computational complexity reduction; interference space ranks; interference system model; iterative alignment scheme; linear interference alignment; low complexity interference alignment; optimization problem; receiver filter; signal space ranks; Interference alignment; chordal distance; precoder; signal space;
Conference_Titel :
Wireless, Mobile & Multimedia Networks (ICWMMN 2011), 4th IET International Conference on
Conference_Location :
Beijing
Electronic_ISBN :
978-1-84919-507-2
DOI :
10.1049/cp.2011.0982
