A two-step multiuser detection scheme for space-time coded MIMO OFDM systems
In this paper, we investigate transceiver design for a wideband multiuser-multiple-input, multiple-output (MIMO) communication system, where the co-channel users are equipped with multiple transmit and multiple receive antennas. In particular, we develop a two-step hard-decision interference cancell...
Saved in:
Main Authors: | , , |
---|---|
Format: | Default Conference proceeding |
Published: |
2006
|
Subjects: | |
Online Access: | https://hdl.handle.net/2134/5617 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
rr-article-9553151 |
---|---|
record_format |
Figshare |
spelling |
rr-article-95531512006-01-01T00:00:00Z A two-step multiuser detection scheme for space-time coded MIMO OFDM systems Li Zhang (8200) Mathini Sellathurai (7208636) Jonathon Chambers (1251609) Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified In this paper, we investigate transceiver design for a wideband multiuser-multiple-input, multiple-output (MIMO) communication system, where the co-channel users are equipped with multiple transmit and multiple receive antennas. In particular, we develop a two-step hard-decision interference cancellation receiver for a multiuser-MIMO uplink system which employs orthogonal frequency division multiplexing (OFDM) modulation and space-time block codes (STBC). The STBC has been implemented either over adjacent tones or adjacent OFDM symbols and the performances of both implementations have been tested under slowly time-varying channels. The two-step receiver structure has been implemented using a combined interference suppression scheme based on minimum mean-squared error (MMSE) and symbol-wise likelihood detectors, which is then followed by an interference cancellation step. The receiver can suppress and cancel the interference from the co-channel users effectively without increasing the complexity significantly. The paper also includes computer experiments that are intended to improve the understanding of specific issues involved in the design of multiuser STBC-OFDM systems. 2006-01-01T00:00:00Z Text Conference contribution 2134/5617 https://figshare.com/articles/conference_contribution/A_two-step_multiuser_detection_scheme_for_space-time_coded_MIMO_OFDM_systems/9553151 CC BY-NC-ND 4.0 |
institution |
Loughborough University |
collection |
Figshare |
topic |
Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified |
spellingShingle |
Mechanical engineering not elsewhere classified untagged Mechanical Engineering not elsewhere classified Li Zhang Mathini Sellathurai Jonathon Chambers A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
description |
In this paper, we investigate transceiver design for a wideband multiuser-multiple-input, multiple-output (MIMO) communication system, where the co-channel users are equipped with multiple transmit and multiple receive antennas. In particular, we develop a two-step hard-decision interference cancellation receiver for a multiuser-MIMO uplink system which employs orthogonal frequency division multiplexing (OFDM) modulation and space-time block codes (STBC). The STBC has been implemented either over adjacent tones or adjacent OFDM symbols and the performances of both implementations have been tested under slowly time-varying channels. The two-step receiver structure has been implemented using a combined interference suppression scheme based on minimum mean-squared error (MMSE) and symbol-wise likelihood detectors, which is then followed by an interference cancellation step. The receiver can suppress and cancel the interference from the co-channel users effectively without increasing the complexity significantly. The paper also includes computer experiments that are intended to improve the understanding of specific issues involved in the design of multiuser STBC-OFDM systems. |
format |
Default Conference proceeding |
author |
Li Zhang Mathini Sellathurai Jonathon Chambers |
author_facet |
Li Zhang Mathini Sellathurai Jonathon Chambers |
author_sort |
Li Zhang (8200) |
title |
A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
title_short |
A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
title_full |
A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
title_fullStr |
A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
title_full_unstemmed |
A two-step multiuser detection scheme for space-time coded MIMO OFDM systems |
title_sort |
two-step multiuser detection scheme for space-time coded mimo ofdm systems |
publishDate |
2006 |
url |
https://hdl.handle.net/2134/5617 |
_version_ |
1797287478106783744 |