Multiuser Decorrelating Based Long-Range Frequency-Domain Channel Transfer Function Prediction in Multicarrier DS-CDMA Systems
Multiuser Decorrelating Based Long-Range Frequency-Domain Channel Transfer Function Prediction in Multicarrier DS-CDMA Systems
In this contribution, multiuser decorrelating based frequency-domain channel estimation and long range channel prediction techniques are proposed for a generalized Multicarrier DS-CDMA (MC DS-CDMA) system communicating over a fast fading and frequency selective channel. In the MC DS-CDMA system considered, the channel transfer function (CTF) is estimated in the frequency-domain with the aid of pilot symbols by invoking the multiuser decorrelating based channel estimation technique, in order to reduce the effects of both the Multiuser Interference (MUI) and the background noise. Then, Kalman filter assisted long-range channel prediction is carried out with the aid of both the current and previous frequency-domain CTFs for the sake of predicting the future CTFs. Furthermore, a sinc-interpolator is employed for the sake of deriving the frequency-domain CTFs associated with the data symbols. Our simulation results show that for a reasonable signal-to-noise ratio (SNR) value the proposed frequency-domain multiuser decorrelating based channel estimator is robust to the effects of both the MUI as well as the noise.
163-167
Hu, B.
5dcb8fd4-63dc-4902-9fa0-e8e6481cdb4f
Liu, W.
af656440-51e8-45c8-b694-a802e71b671e
Yang, L.-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
2006
Hu, B.
5dcb8fd4-63dc-4902-9fa0-e8e6481cdb4f
Liu, W.
af656440-51e8-45c8-b694-a802e71b671e
Yang, L.-L.
ae425648-d9a3-4b7d-8abd-b3cfea375bc7
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Hu, B., Liu, W., Yang, L.-L. and Hanzo, L.
(2006)
Multiuser Decorrelating Based Long-Range Frequency-Domain Channel Transfer Function Prediction in Multicarrier DS-CDMA Systems.
ISSSTA '06, Manaus, Amazon, Brazil.
28 - 31 Aug 2006.
.
Record type:
Conference or Workshop Item
(Paper)
Abstract
In this contribution, multiuser decorrelating based frequency-domain channel estimation and long range channel prediction techniques are proposed for a generalized Multicarrier DS-CDMA (MC DS-CDMA) system communicating over a fast fading and frequency selective channel. In the MC DS-CDMA system considered, the channel transfer function (CTF) is estimated in the frequency-domain with the aid of pilot symbols by invoking the multiuser decorrelating based channel estimation technique, in order to reduce the effects of both the Multiuser Interference (MUI) and the background noise. Then, Kalman filter assisted long-range channel prediction is carried out with the aid of both the current and previous frequency-domain CTFs for the sake of predicting the future CTFs. Furthermore, a sinc-interpolator is employed for the sake of deriving the frequency-domain CTFs associated with the data symbols. Our simulation results show that for a reasonable signal-to-noise ratio (SNR) value the proposed frequency-domain multiuser decorrelating based channel estimator is robust to the effects of both the MUI as well as the noise.
More information
Published date: 2006
Additional Information:
Event Dates: 28-31 August 2006
Venue - Dates:
ISSSTA '06, Manaus, Amazon, Brazil, 2006-08-28 - 2006-08-31
Organisations:
Southampton Wireless Group
Identifiers
Local EPrints ID: 262969
URI: http://eprints.soton.ac.uk/id/eprint/262969
PURE UUID: e29e337a-4b91-4fdc-9f7c-5c09667e4f7b
Catalogue record
Date deposited: 18 Sep 2006
Last modified: 18 Mar 2024 02:49
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Contributors
Author:
B. Hu
Author:
W. Liu
Author:
L.-L. Yang
Author:
L. Hanzo
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