Name
Title | ||
|---|---|---|
Multiuser Downlink Hybrid Analog-Digital Beamforming with Individual SINR Constraints |
Abstract | ||
|---|---|---|
This paper deals with the problem of multiuser transmit hybrid analog-digital beamforming. Precisely, we tackle the problem of transmit power minimization under minimum signal-to-noise-plus-interference ratio (SINR) constraints. While the all-digital beamforming solution has been extensively studied in the recent years, little is known about the hybrid analog-digital optimization. This latter design is known to be a non-convex NP-hard problem as the analog part entails the optimization of a quadratically constraint quadratic program with several equality constraints. In order to solve this problem, we propose an alternating optimization with a successive convex approximation procedure. The conceived scheme is able to consider an arbitrary sub-array connectivity matrix (i.e. localized, interleaved, fully-connected,...). Through numerical simulations it is observed that the proposed framework yields to an efficient solution in few iterations providing a substantial gain compared to current heuristic approaches. |
Year | Venue | Field |
|---|---|---|
2017 | WSA 2017; 21th International ITG Workshop on Smart Antennas | Beamforming,Quadratic growth,Mathematical optimization,Heuristic,Transmitter power output,Computer science,Matrix (mathematics),Minification,Quadratic programming,Telecommunications link |
DocType | ISBN | Citations |
Conference | 978-3-8007-4394-0 | 1 |
PageRank | References | Authors |
0.40 | 0 | 3 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Miguel Ángel Vázquez | 1 | 57 | 10.21 |
| Luis Blanco | 2 | 22 | 5.38 |
| Ana I. Pérez-Neira | 3 | 401 | 52.50 |