Open AccessNovel Turbo Receiver for MU ‐ MIMO SC ‐ FDMA System
Author(s) -
Wang HungSheng,
Ueng FangBiau,
Chang YuKuan
Publication year - 2018
Publication title -
etri journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.295
H-Index - 46
eISSN - 2233-7326
pISSN - 1225-6463
DOI - 10.4218/etrij.2017-0198
Subject(s) - telecommunications link , turbo , cyclic prefix , mimo , equalization (audio) , computer science , transmission (telecommunications) , electronic engineering , channel (broadcasting) , turbo code , orthogonal frequency division multiplexing , computer network , algorithm , engineering , telecommunications , decoding methods , automotive engineering
Single carrier‐frequency‐division multiple access ( SC ‐ FDMA ) has been adopted as the uplink transmission standard in fourth‐generation cellular networks to facilitate power efficiency transmission in mobile stations. Because multiuser multiple‐input multiple‐output ( MU ‐ MIMO ) is a promising technology employed to fully exploit the channel capacity in mobile radio networks, this study investigates the uplink transmission of MU ‐ MIMO SC ‐ FDMA systems with orthogonal space‐frequency block codes ( SFBC s). It is preferable to minimize the length of the cyclic prefix ( CP ). In this study, the chained turbo equalization technique with chained turbo estimation is employed in the designed receiver. Chained turbo estimation employs a short training sequence to improve the spectrum efficiency without compromising the estimation accuracy. In this paper, we propose a novel and spectrally efficient iterative joint‐channel estimation, multiuser detection, and turbo equalization for an MU ‐ MIMO SC ‐ FDMA system without CP ‐insertion and with short TR . Some simulation examples are presented for the uplink scenario to demonstrate the effectiveness of the proposed scheme.