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Exit Chart Aided Irregular Convolutional Code Design for Iterative Downlink SDMA Systems using Imperfect Channel State Information

Exit Chart Aided Irregular Convolutional Code Design for Iterative Downlink SDMA Systems using Imperfect Channel State Information
Exit Chart Aided Irregular Convolutional Code Design for Iterative Downlink SDMA Systems using Imperfect Channel State Information
We analyze a precoded and iteratively detected downlink multiuser system employing imperfect Spatio-Temporal Channel Impulse Response at the Transmitters (ST-CIRT) with the aid of Extrinsic Information Transfer (EXIT) charts. A Precoded Iterative DownLink Space Division Multiple Access (PI-DLSDMA) system proposed in our previous research is further improved and shown to be capable of maintaining an infinitesimally low BER, despite using imperfect ST-CIRT. A further novel feature of the PI-DL-SDMA system is that we design an IrRegular Convolutional Code (IRCC) with the aid of EXIT chart analysis for creating an open EXIT tunnel between the inner decoder’s and outer decoder’s EXIT curve at a reduced Eb/N0 value and hence maintain an infinitesimally low BER. Index Terms— SDMA, downlink, iterative, EXIT chart
105-110
Wei, C.Y.
a8cbdf52-ebba-4154-9055-1e9768e2ab88
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1
Wei, C.Y.
a8cbdf52-ebba-4154-9055-1e9768e2ab88
Wang, J.
53d8d8bd-3c17-406e-9acf-961cc86b9a00
Hanzo, L.
66e7266f-3066-4fc0-8391-e000acce71a1

Wei, C.Y., Wang, J. and Hanzo, L. (2007) Exit Chart Aided Irregular Convolutional Code Design for Iterative Downlink SDMA Systems using Imperfect Channel State Information. IEEE SiPS'07, Shanghai, China. 17 - 19 Oct 2007. pp. 105-110 .

Record type: Conference or Workshop Item (Paper)

Abstract

We analyze a precoded and iteratively detected downlink multiuser system employing imperfect Spatio-Temporal Channel Impulse Response at the Transmitters (ST-CIRT) with the aid of Extrinsic Information Transfer (EXIT) charts. A Precoded Iterative DownLink Space Division Multiple Access (PI-DLSDMA) system proposed in our previous research is further improved and shown to be capable of maintaining an infinitesimally low BER, despite using imperfect ST-CIRT. A further novel feature of the PI-DL-SDMA system is that we design an IrRegular Convolutional Code (IRCC) with the aid of EXIT chart analysis for creating an open EXIT tunnel between the inner decoder’s and outer decoder’s EXIT curve at a reduced Eb/N0 value and hence maintain an infinitesimally low BER. Index Terms— SDMA, downlink, iterative, EXIT chart

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More information

Published date: 2007
Additional Information: Event Dates: 17-19 October 2007
Venue - Dates: IEEE SiPS'07, Shanghai, China, 2007-10-17 - 2007-10-19
Organisations: Southampton Wireless Group

Identifiers

Local EPrints ID: 263910
URI: http://eprints.soton.ac.uk/id/eprint/263910
PURE UUID: 542cea9a-32ed-47f4-8a73-96d869097afb
ORCID for L. Hanzo: ORCID iD orcid.org/0000-0002-2636-5214

Catalogue record

Date deposited: 20 Apr 2007
Last modified: 18 Mar 2024 02:34

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Contributors

Author: C.Y. Wei
Author: J. Wang
Author: L. Hanzo ORCID iD

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