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cs.IT2019
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…
cs.IT2019
An Enhanced SDR based Global Algorithm for Nonconvex Complex Quadratic Programs with Signal Processing Applications
Cheng Lu, Ya-Feng Liu, Jing Zhou
In this paper, we consider a class of nonconvex complex quadratic programming (CQP) problems, which find a broad spectrum of signal processing applications. By using the polar coor…