Combined per-user SLNR and SINR criterions for interference alignment in uplink coordinated multi-point joint reception
Journal
2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
Date Issued
2014
Author(s)
Abstract
An interference alignment (IA) algorithm for uplink coordinated multi-point (CoMP) is proposed. For the design of precoder at the transmitter, the unselfish per-user signal-to-leakage-and-noise ratio (SLNR) criterion is used. On the other hand, the per-user signal-to-interference-and-noise-ratio (SINR) criterion is adopted to determine the decoder of the receiver. The proposed algorithm does not rely on the channel reciprocity and thus is suitable to operate in case of different user transmission powers. Through iterative procedure, we show that the per-user-based criterion which keeps user data streams orthogonal can suppress interference effectively and achieve higher sum rate than the conventional IA algorithms, such as minimum leakage and maximum per-stream SINR algorithms in the multi-user CoMP joint reception scenarios. © 2014 Asia-Pacific Signal and Information Processing Ass.
Event(s)
2014 Asia-Pacific Signal and Information Processing Association Annual Summit and Conference, APSIPA 2014
Subjects
coordinated multi-point
interference alignment
SINR
SLNR
sum rate
Description
Chiang Mai, 9 December 2014 through 12 December 2014
Type
conference paper