Wirtinger Flow Meets Constant Modulus Algorithm: Revisiting Signal Recovery for Grant-Free Access

In this work, we analyze the convergence of constant modulus algorithm (CMA) in blindly recovering multiple signals to facilitate grant-free wireless access. The CMA typically solves a non-convex problem by utilizing stochastic gradient descent. The iterative convergence of CMA can be affected by ad...

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Vydané v:	IEEE transactions on signal processing Ročník 69; s. 6515 - 6529
Hlavní autori:	Feres, Carlos, Ding, Zhi
Médium:	Journal Article
Jazyk:	English
Vydavateľské údaje:	New York IEEE 2021 The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Predmet:	Algorithms blind signal recovery Channel noise Constant-modulus algorithm Convergence Cost function Heuristic algorithms Internet of Things Iterative methods Minimization Optimization Phase retrieval Recovery Signal processing algorithms Signal reconstruction Wirtinger Flow
ISSN:	1053-587X, 1941-0476
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