63 citations · 69 across the 4 of their papers we have counts for
4 papers
New semidefinite relaxations for a class of complex quadratic programming problems
Yingzhe Xu, Cheng Lu, Zhibin Deng +1
In this paper, we propose some new semidefinite relaxations for a class of nonconvex complex quadratic programming problems, which widely appear in the areas of signal processing a…
On the Equivalence of Semidifinite Relaxations for MIMO Detection with General Constellations
Ya-Feng Liu, Zi Xu, Cheng Lu
The multiple-input multiple-output (MIMO) detection problem is a fundamental problem in modern digital communications. Semidefinite relaxation (SDR) based algorithms are a popular…
Tightness of a new and enhanced semidefinite relaxation for MIMO detection
Cheng Lu, Ya-Feng Liu, Wei-Qiang Zhang +1
In this paper, we consider a fundamental problem in modern digital communications known as multi-input multi-output (MIMO) detection, which can be formulated as a complex quadratic…
An Efficient Global Algorithm for Single-Group Multicast Beamforming
Cheng Lu, Ya-Feng Liu
Consider the single-group multicast beamforming problem, where multiple users receive the same data stream simultaneously from a single transmitter. The problem is NP-hard and all…