Detection and Estimation Algorithms in Massive MIMO Systems

摘要

This book chapter reviews signal detection and parameter estimationtechniques for multiuser multiple-antenna wireless systems with a very largenumber of antennas, known as massive multi-input multi-output (MIMO) systems.We consider both centralized antenna systems (CAS) and distributed antennasystems (DAS) architectures in which a large number of antenna elements areemployed and focus on the uplink of a mobile cellular system. In particular, wefocus on receive processing techniques that include signal detection andparameter estimation problems and discuss the specific needs of massive MIMOsystems. Simulation results illustrate the performance of detection andestimation algorithms under several scenarios of interest. Key problems arediscussed and future trends in massive MIMO systems are pointed out.