| EPSRC Reference: |
GR/H26307/01 |
| Title: |
A RIGOROUS EVALUATION OF CDMA TECHNIQUES FOR FUTURE EUROPEAN PERSONAL COMMUNICATION SYSTEMS |
| Principal Investigator: |
Barton, Professor S |
| Other Investigators: |
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| Department: |
Electronic & Electrical Engineering |
| Organisation: |
University of Bradford |
| Scheme: |
LINK |
| Starts: |
22 June 1992 |
Ends: |
21 November 1995 |
Value (£): |
207,630
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| EPSRC Research Topic Classifications: |
| Digital Signal Processing |
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Summary on Grant Application Form |
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To assess the applicability of Code Division Multiple Access (CDMA) to future personal communications systems, in particular the Universal Mobile Telecommunications System (UMTS), through:Theoretical analyses and simulations of networks and radio links.Design and construction of a demonstration system.Field trials of the test-bed system.Progress:Completed:Analysis of service and air-interface requirements for UMTS.Analysis of Spectral Efficiency for frequency hopping (FH) and direct sequence (DS) CDMA.Analysis of hardware complexity for both FH and DS CDMA systems.Specification of architecture for a DS CDMA system, including the following features:1. Forward and reverse links at 64 and 128 kb/s with coding and interleaving2. Reverse link closed loop power control3. Macro diversity on both links4. Code separated power control and signalling channelsDesign of test set for field trial of test-bed system.In Progress:Physical design and manufacture of demonstration system. Current position at Bradford:1. A new architecture for an all-digital coherent rake receiver has been developed 2. Analogue and RF modules for the test-bed system have been designed and manufactured. 3. DSP modules for a mobile station modulator and a base station demodulator (including rake receiver) designed and currently being tested and de-bugged. A selection of papers published from Bradford University: JP Aldis and SK Barton On the Relative Power Levels Required in DS-CDMA, FH-CDMA and Narrowband Cellular Radio Systems .IEEE Vehicular Technology Conf, Stockholm, June 1994. The Performance of GMSK as a Modulation Scheme for DS-CDMA .IEEE International Symposium on Spread Spectrum Techniques and Applications, Oulu, Finland, July 1994. Capacity Analysis of a Cellular Radio System using Frequency Hopping CDMA . PIMRC '94, The Hague, September 1994. JP Aldis, MI Dababneh and SK Barton The Reverse Link Air Interface in the UK Link Personal Communications CDMA Testbed .COST231, Darmstadt, September 1994.
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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 |
| Summary |
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| Date Materialised |
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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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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.brad.ac.uk |