On Throughput of MIMO-OFDM Systems with Joint Iterative Channel Estimation and Multiuser Detection under Different Multiple Access Schemes

Author

Rossi, Pierluigi Salvo

Author_Institution

Dept. of Inf. Eng., Second Univ. of Naples, Aversa, Italy

Volume

15

Issue

8

fYear

2011

fDate

8/1/2011 12:00:00 AM

Firstpage

831

Lastpage

833

Abstract

In this letter we compare the throughput performance of multiuser MIMO-OFDM systems operating in time-variant scenarios. The system employes packet-based transmissions and the receiver is twofold-iterative implementing multiuser detection, channel estimation and soft single-user decoding. Different combinations in terms of multiple-access techniques (time division, frequency division, and space division) and modulation schemes (BPSK and QPSK) are compared. Large-size constellations with interfering users in space-division multiple access (SDMA) are preferable in high-SNR range.

Keywords

MIMO communication; OFDM modulation; channel estimation; iterative decoding; multiuser detection; quadrature phase shift keying; radio receivers; space division multiple access; BPSK modulation; MIMO-OFDM system; QPSK modulation; SDMA; joint iterative channel estimation; multiple access technique; packet-based transmission; receiver; soft single-user decoding; space division multiple access; time-variant scenarios; twofold-iterative implementing multiuser detection; Channel estimation; Multiaccess communication; Multiuser detection; OFDM; Receivers; Signal to noise ratio; Throughput; Channel estimation; MIMO-OFDM systems; iterative receivers; multiuser detection; throughput performance;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2011.060811.110714

Filename

5910096