Title
Precoding via Approximate Message Passing with Instantaneous Signal Constraints.
Abstract
This paper proposes a low complexity precoding algorithm based on the recently proposed Generalized Least Square Error (GLSE) scheme with generic penalty and support. The algorithm iteratively constructs the transmit vector via Approximate Message Passing (AMP). Using the asymptotic decoupling property of GLSE precoders, we derive closed form fixed point equations to tune the parameters in the proposed algorithm for a general set of instantaneous signal constraints. The tuning strategy is then utilized to construct transmit vectors with restricted peak-to-average power ratios and to efficiently select a subset of transmit antennas. The numerical investigations show that the proposed algorithm tracks the large-system performance of GLSE precoders even for a moderate number of antennas.
Year
Venue
Field
2018
arXiv: Information Theory
Mathematical optimization,Decoupling (cosmology),Algorithm,Least square error,Fixed point equation,Message passing,Precoding,Mathematics,Moderate number
DocType
Volume
Citations 
Journal
abs/1801.02442
3
PageRank 
References 
Authors
0.40
10
3
Name
Order
Citations
PageRank
Ali Bereyhi13714.09
Mohammad Ali Sedaghat27212.19
R. Muller31206124.92