Performance of Frequency Domain Multiuser-MIMO Turbo Equalization Without Cyclic Prefix
Journal
IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC)
Pages
385-388
Date Issued
2017
Author(s)
Abstract
Multiuser (MU)-multiple-input multiple-output (MIMO) receivers often need to take iterative strategies to cancel multiuser-interference (MUI). Frequency domain turbo equalization is one of the most promising solutions to the MUI problem. It offers a reasonable trade-off between the receiver performance and the computational complexity by assuming cyclic prefix (CP)-transmission. Nevertheless, CP-transmission is not preferable for the battery life of user terminals. Therefore, this paper proposes a new frequency domain multiuser-detection (MUD) technique by extending the chained turbo equalization (CHATUE) to MU-MIMO systems. Simulation results verify that the proposed MU-MIMO CHATUE algorithm is a more reliable option to improve the spectral- and/or energy-efficiency by eliminating the necessity of CP-transmission than by shortening the training sequences or puncturing the coded data bits. © 2017 IEEE.
Subjects
Cyclic prefix (CP); Multi-user interference (MUI); Overlap-and-add; Spectral efficiency
SDGs
Other Subjects
Codes (symbols); Communication channels (information theory); Economic and social effects; Energy efficiency; Equalizers; Iterative methods; MIMO systems; Multiuser detection; Radio communication; Cyclic Prefix; Frequency-domain turbo equalizations; Multi-user interference; Overlap-and-add; Receiver performance; Spectral efficiencies; Training sequences; Turbo equalizations; Frequency domain analysis
Type
conference paper