Title :
Equivalent Expressions and Performance Analysis of SLNR Precoding Schemes: A Generalisation to Multi-Antenna Receivers
Author :
Patcharamaneepakorn, P. ; Doufexi, Angela ; Armour, Simon
Author_Institution :
Centre for Commun. Res., Univ. of Bristol, Bristol, UK
Abstract :
In this letter, equivalent expressions of transmit precoding solutions based on the maximum signal-to-leakage-plus-noise ratio (SLNR) are derived for multiuser MIMO systems with multi-antenna receivers. The performance of the SLNR precoding scheme is also analysed based on this equivalent form. Further, it is shown that the SLNR scheme can be viewed as a generalised channel regularisation technique and the conditions for an equivalence between the SLNR, the Regularised Block Diagonalisation (RBD) and the Generalised MMSE Channel Inversion (GMI method 2) schemes are given. Consequently, the performance analysis in this letter can be extended to the RBD and GMI schemes. This generalises the equivalence between the SLNR and MMSE schemes and its useful implications, from the case of single-antenna to multi-antenna receivers.
Keywords :
MIMO communication; antenna arrays; least mean squares methods; multiuser channels; precoding; radio receivers; MMSE schemes; RBD; SLNR precoding schemes; equivalent expressions; generalised MMSE channel inversion; generalised channel regularisation; maximum signal-to-leakage-plus-noise ratio; multiantenna receivers; multiuser MIMO systems; precoding solutions; regularised block diagonalisation; Bit error rate; Interference; MIMO; Performance analysis; Receiving antennas; Signal to noise ratio; GMI; Multiuser MIMO; RBD; SLNR; equivalent forms; linear precoding; performance analysis;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2013.050313.130549
