Paper Info
Title
Wideband hybrid precoder for massive MIMO systems
Abstract
This paper studies wideband hybrid precoder for downlink space-division multiple-access and orthogonal frequency-division multiple-access (SDMA-OFDMA) massive multi-input multi-output (MIMO) systems. We first derive an iterative algorithm to alternatingly optimize the phase-shifter based wideband analog precoder and low-dimensional digital precoders, then an efficient low-complexity non-iterative hybrid precoder proposes. Simulation results show that in wideband systems the performance of hybrid precoder is affected by the employed frequency-domain scheduling method and the number of available radio frequency (RF) chains, which can perform as well as narrowband hybrid precoder when greedy scheduling is employed and the number of RF chains is large.
Year
DOI
Venue
2015
10.1109/GlobalSIP.2015.7418206
2015 IEEE Global Conference on Signal and Information Processing (GlobalSIP)
Keywords
Field
DocType
wideband hybrid precoder,SDMA-OFDMA massive MIMO systems,space-division multiple-access,orthogonal frequency-division multiple-access,massive multi-input multi-output systems,iterative algorithm,phase-shifter based wideband analog precoder,low-dimensional digital precoders,low-complexity noniterative hybrid precoder,frequency-domain scheduling method,radio frequency chains
Frequency domain,Wideband,Narrowband,Iterative method,Computer science,Control theory,MIMO,Electronic engineering,Radio frequency,Orthogonal frequency-division multiplexing,Telecommunications link
Conference
Citations 
PageRank 
References 
4
0.47
14
Authors
3
Name
Order
Citations
PageRank
Lingxiao Kong1121.38
Shengqian Han231224.78
Chenyang Yang32111141.51