Alternate hybrid precoding algorithm for wideband millimetre wave massive MIMO systems. Issue 8 (1st May 2020)

• Record Type: Journal Article
• Authors: Zhang, Ran; Zou, Weixia; Wang, Ye; Cui, Mingyang; Sun, Xuebin
• Is Part Of: IET communications. Volume 14:Issue 8(2020)
• Page Start: 1261
• Page End: 1267
• Publication Date: 2020-05-01
• Subjects: MIMO communication -- OFDM modulation -- precoding -- millimetre wave communication -- wireless channels -- broadband networks; hybrid precoding algorithm -- wideband millimetre wave massive MIMO systems -- digital analogue precoding -- system performance -- hardware complexity -- millimetre wave massive multiple‐input multiple‐output systems -- narrowband channels -- mmWave systems -- wideband channels -- hybrid precoding design -- mmWave massive MIMO systems -- hybrid precoding problem -- low‐complexity algorithm -- digital precoder -- analogue precoder -- mmWave OFDM systems -- orthogonal frequency division multiplexing; Telecommunication systems -- Periodicals; Speech processing systems -- Periodicals; 621.38205
• DOI: 10.1049/iet-com.2019.1070
• Languages: English
• ISSNs: 1751-8628

Abstract

Abstract : Hybrid precoding, combining the digital and analogue precoding, is a key enabler to reach a compromise between system performance and hardware complexity in millimetre wave (mmWave) massive multiple‐input multiple‐output (MIMO) systems. Most previous studies on hybrid precoding considered narrowband channels. However, mmWave systems are expected to operate on wideband channels with frequency selectivity. In this study, the authors focus on the hybrid precoding design in mmWave massive MIMO systems using orthogonal frequency division multiplexing (OFDM). By transforming the hybrid precoding problem into a series of sub‐problems, they propose a low‐complexity algorithm to design the digital precoder and analogue precoder alternately. In particular, a phase pursuit method is introduced to seek this solution of analogue precoding matrix with the constant amplitude constraint. Simulation results and complexity evaluations reveal that the proposed algorithm can obtain better performance and lower complexity than some existing solutions in mmWave OFDM systems.