Multiuser MIMO Frequency Domain Equalizations for Single Carrier FDMA Communications

• Main Authors: Ming-Hsiao Hsu, 許名孝
• Other Authors: Fang-Biau Ueng
• Format: Others
• Language: en_US
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/70449158824064798033

碩士 === 國立中興大學 === 電機工程學系所 === 99 === According to the 3GPP Long Term Evolution (LTE) standard, the Single Carrier Frequency Division Multiple Access (SC-FDMA) is adopted as the uplink transmission scheme. SC-FDMA is a recent modulation technique combining most of the advantages of Orthogonal Frequency Division Multiple Access (OFDMA) with the low Peak-to-Average Power Ratio (PAPR) of single-carrier transmission. Multiple input/multiple output (MIMO) techniques have become an indispensable part of wireless communications. In order to fully utilize available the spectrum, multiuser MIMO, which allows several terminals to share the same bandwidth, can further increase the spectral efficiency. In this project, receivers for space frequency block coded (SFBC) multiuser MIMO receiver for single carrier frequency division multiple access (SC-FDMA) system over multipath fading channels are derived. We derive the condition that multiple users’ signals are separable through zero-forcing (ZF) and minimal mean square error (MMSE) algorithms. We propose turbo multiuser detection algorithm which utilize the extrinsic information from maximum a posteriori (MAP) decoder to cancel the MAI.