| EPSRC Reference: |
GR/R16822/01 |
| Title: |
Space-Time Iterative Reciever Structures For Wireless Communication Systems |
| Principal Investigator: |
Aghvami, Professor AH |
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| Department: |
Electronic Engineering |
| Organisation: |
Kings College London |
| Scheme: |
Standard Research (Pre-FEC) |
| Starts: |
01 January 2001 |
Ends: |
31 December 2001 |
Value (£): |
34,429
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| EPSRC Research Topic Classifications: |
| Digital Signal Processing |
RF & Microwave Technology |
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Summary on Grant Application Form |
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The main focus is on deriving low cost detection algorithms which are highly effective in suppressing multiple access interference (MAI) and inter- symbol interference (ISI) in wireless communication systems. We propose to design iterative space-time detectors based on a recently developed low cost receiver structure. In this receiver, the channel memory is partitioned into two sections, where the first section is handled by a MAP detector and the second section is dealt by a digital feedback filter. The outputs of the MAP detector are used to recursively compute the soft outputs feeding the DF filter. This in turn makes this receiver robust on noisy channels, as the error propagation effect, which is common for non- linear decision feedback Minimum Mean Square Error (MMSE) receivers, is diminished. Another distinguishing feature of the proposed structure is reduced complexity compared to the optimum MAP receiver. We propose to further enhance the performance of this receiver by iterative detection/decoding and space-time processing. The proposed receiver structure is particularly well suited for multi-user COMA receivers in cellular mobile communication systems where optimum MAP detectors would be prohibitively complex. We propose to investigate the application in wireless cellular mobile wideband code division multi-plex access (COMA) systems due to their expansion and huge capacity demands which cannot be met with the standard radio technology.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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