Centre for Security, Communications and Network Research

CSCAN Research Staff Profile

Name: Dr Marcel Adrian Ambroze Position: Lecturer in Digital Communication Engineering Email: mambroze@cscan.org Qualifications: PhD in Digital Communications (2000) BEng (Hons) Communication Engineering (First Class Hons) (1996) Professional Memberships: MIEEE (Member of Institute of Electrical and Electronic Enginners) Research Interests: Error correction coding and modulation Coding Theory (code design, theoretical limits) Information Theory for Coding and Data Compression Signal Processing (particularly for communications, image and video processing) Satellite and wireless communications as applications of signal processing, coding and modulation design Communications channels, practical code design and theoretical limits (currently: AWGN, Erasure, BSC and Side-Information AWGN channels, also satellite multiple access) Watermarking as hidden communications with side information at the transmitter Signal processing for watermarking Human Visual System (HVS) models Wavelets Editorships / Refereeing for journals: IEEE Transactions on Communications IEEE Transactions on Image Processing IEEE Signal Processing Letters IET Proceedings Vision and Image Processing IET Proceedings Communications Electronics Letters EPSRC Invited Presentations, Lectures, etc.: Invited lectures at University of Canterbury, New Zealand, Oct 2009 Invited Talk to AHA Comtech, US on ``Recent advances on error correction coding at Plymouth', May 2009 Invited Lecture to UC Davis, US on ``LDPC Tree Search', May 2009 Invited talk to the IEEE New Zealand section on ``Recent developments in coding for satellite and space communications', April 2005. Invited talk at Technical University of Ulm, Germany, on ``Error correction coding research at Plymouth', February 2004. Invited talk at University College Dublin on ``Error Correction Coding for Spread Spectrum Video Watermarking', May 2003. Invited talk at The Technical University of Timisoara, Romania, on ``Watermarking Uncompressed Video: an Overview", November 2000. Projects: Projects supervised by/involving Dr Marcel Adrian Ambroze

Publications

Journal papers

Coding for shared satellite channel communications Martin PA, Ambroze MA, Taylor DP, Tomlinson M IEEE Transactions on Communications, Volume 57, Issue 8, pp2330-2338, 2009 More details & download link (if available)...

Novel Soft-Feedback Equalization Method for Multilevel Magnetic Recording Magnetics Shah P, Ahmed MZ, Ambroze MA, Tjhai CJ, Davey PJ IEEE Transactions on Magnetics, Volume 43, Number 6, pp. 2280-2282, 2007 More details & download link (if available)...

Extending the Dorsch decoder towards achieving maximum-likelihood decoding for linear codes Tomlinson M, Tjhai CJ, Ambroze MA IET Communications, Volume 1, Issue 3, pp. 479-488, 2007 More details & download link (if available)...

Analysis of the distribution of the number of erasures correctable by a binary linear code and the link to low-weight codewords Tomlinson M, Tjhai CJ, Cai J, Ambroze MA IET Communications, Volume 1, Issue 3, pp. 539-548, 2007 More details & download link (if available)...

Idempotent, Mattson-Solomon polynomials and binary LDPC codes Horan R, Tjhai CJ, Tomlinson M, Ambroze MA, Ahmed MZ IEE Proceedings Communications, Volume 153, Issue 2, pp. 256-262, 2006 More details & download link (if available)...

New Linear Codes Derived from Binary Cyclic Codes of Length 151 Tjhai CJ, Tomlinson M, Grassl M, Horan R, Ahmed MZ, Ambroze MA IEE Proceedings Communications, Volume 153, Issue 5, pp. 581-585, 2006 More details & download link (if available)...

Cyclotomic idempotent-based binary cyclic codes Tjhai CJ, Tomlinson M, Ambroze MA, Ahmed MZ Electronics Letters, Volume 41, Issue 6, pp. 341-343, 2005 More details & download link (if available)...

DWT-based high-capacity blind video watermarking, invariant to geometrical attacks Serdean CV, Ambroze MA, Tomlinson M, Wade JG IEE Proceedings Vision, Image and Signal Processing, Volume 150, Issue 1, pp.51-58, 2003 More details & download link (if available)...

Dependence of dfree in MPCCC Systems Ambroze MA, Wade G, Tomlinson M IEEE Transactions on Communications, Volume 51, Number 3, pp. 318-325, 2003 More details & download link (if available)...

Bounds for finite block-length codes Tomlinson M, Wade G, Van Eetvelt P, Ambroze MA IEE Proceedings Communications, Volume 149, Issue 2, pp. 65-69, 2002 More details & download link (if available)...

Search for good b/(b + 1) high rate recursive systematic convolutional component codes Tomlinson M, Ferrari M, Ambroze MA Electronics Letters, Volume 38, Issue 25, pp. 1691-1693, 2002 More details & download link (if available)...

Turbo Code Protection of a Video Watermarking Channel Ambroze MA, Wade G, Serdean CV, Tomlinson M, Stander J, Borda M IEE Vision, Image and Signal Processing, Volume 148, Number 1, pp. 54-58, 2001 More details & download link (if available)...

Practical Aspects of Iterative Decoding Ambroze MA, Wade G, Tomlinson M IEE Proceedings Communications, Volume 147, Number 2, pp. 69-74, 2000 More details & download link (if available)...

Turbo Code Tree and Code Performance Ambroze MA, Wade G, Tomlinson M IEE Electronics Letters, Volume 34, Number 4, pp. 353-354, 1998 More details & download link (if available)...

Iterative MAP Decoding for Serial Concatenated Convolutional Codes Ambroze MA, Wade G, Tomlinson M IEE Proceedings Communications, Volume 145, Number 2, pp. 53-59, 1998 More details & download link (if available)...

15 Journal papers

Conference papers

A II-HARQ scheme for BEC models with ML decoding of Turbo Codes Ferrari M, Bellini S, Ambroze MA, Tomlinson M IEEE Information Theory Workshop, ITW 08, pp.76-80, 2008 More details & download link (if available)...

Comparison of decoding turbo Gallager codes in hybrid decoding arrangements with different iterative decoders over the erasure channel Yang L, Ambroze MA, Tomlinson M 11th IEEE Singapore International Conference on Communication Systems, pp.253-257, 2008 More details & download link (if available)...

Biorthogonal matrix dirty paper coding for information hiding in still images Xu X, Tomlinson M, Ambroze MA, Ahmed MZ 2nd International Conference on Digital Information Management, ICDIM 07, pp.454 - 459, 2007 More details & download link (if available)...

Analysis of the Distribution of the Number of Correctable Erasures for Turbo Codes with DRP Interleavers Ambroze MA, Tomlinson M, Tjhai CJ, Ahmed MZ IEEE Information Theory Workshop, ITW 07, pp.214-217, 2007 More details & download link (if available)...

Advances in Iterative Decoding and Maximum Likelihood Decoding for the Packet Network with Comparisons to Fountain Codes over the Erasure Channel Cai J, Tomlinson M, Tjhai CJ, Ambroze MA, Ahmed MZ Proceedings of the 4th International Symposium on Turbo Codes & Related Topics; 6th International ITG-Conference on Source and Channel Coding, Munich, Germany, 3-7 April, 2006 More details & download link (if available)...

Some Results on the Weight Distributions of the Binary Double-Circulant Codes Based on Primes Tjhai CJ, Tomlinson M, Horan R, Ahmed MZ, Ambroze MA 10th IEEE Singapore International Conference on Communication systems, ICCS 06, pp.1-5, 2006 More details & download link (if available)...

On the Efficient Codewords Counting Algorithm and the Weight Distributions of the Binary Quadratic Double-Circulant Codes Tjhai CJ, Tomlinson M, Horan R, Ahmed MZ, Ambroze MA IEEE Information Theory Workshop, ITW 06, pp. 42-46, 2006 More details & download link (if available)...

Comparison of Concatenated Reed-Solomon Coding with Hard-decision to Soft-decision LDPC Coding for the Rayleigh Fading Channel Cai J, Tomlinson M, Tjhai CJ, Ambroze MA, Ahmed MZ IEEE Information Theory Workshop, ITW 06, Chengdu, China, 22-26 Oct, pp.135-139, 2006 More details & download link (if available)...

Comparisons of Orthogonalisation and Writing-On-Dirty-Paper Schemes for High Capacity Watermarking Xu X, Tomlinson M, Ambroze MA, Ahmed MZ IEEE Global Telecommunications Conference, GLOBECOM 06, pp. 1-6, 2006 More details & download link (if available)...

Analysis on Decoding Algorithms Based on Sectionalised Trellises of Block Codes and Their Dual Cai J, Ambroze MA Proceedings of the 2005 Postgraduate Research Conference in Electronics, Photonics, Communications and Networks, and Computing Science (PREP'05), Lancaster, UK, March, 2005 More details & download link (if available)...

Erasure correcting codes, network congestion, multicast and broadcast Cai J, Tjhai CJ, Tomlinson M, Ambroze MA, Ahmed MZ Proceedings of the 4th IASTED International Conference Communication Systems and Networks, Benidorm, Spain, 12-14 Sep, pp224–229, 2005 More details & download link (if available)...

A finite-field transform domain construction of binary low-density parity-check codes Horan R, Tjhai CJ, Tomlinson M, Ambroze MA, Ahmed MZ IEEE Information Theory Workshop, ITW 05, pp72-76, 2005 More details & download link (if available)...

Approaching the ML performance with iterative decoding Papagiannis E, Ambroze MA, Tomlinson M IEEE International Zurich Seminar on Communications, pp.220-223, 2004 More details & download link (if available)...

Enhancement of turbo codes using cyclic redundancy check with interleaver optimisation Rogers AJ, Tomlinson M, Ambroze MA, Ahmed MZ Proceedings IEEE International Symposium on Information Theory, ISIT 04, p.508, 2004 More details & download link (if available)...

Magnitude modulation for small satellite Earth terminals using QPSK and OQPSK Ambroze MA, Tomlinson M, Wade G IEEE International Conference on Communications, ICC 03, pp.2099-2103, 2003 More details & download link (if available)...

Combating geometrical attacks in a DWT based blind video watermarking system Serdean CV, Ambroze MA, Tomlinson M, Wade G 4th EURASIP-IEEE Region 8 International Symposium on Video/Image Processing and Multimedia Communications, VIPromCom, pp.263 - 266, 2002 More details & download link (if available)...

Adding robustness to geometrical attacks to a wavelet based blind video watermarking system Serdean CV, Ambroze MA, Tomlinson M, Wade JG IEEE International Conference on Multimedia and Expo, ICME 02, pp.557-560, 2002 More details & download link (if available)...

Power and bandwidth efficient modulation and coding for small satellite communication terminals Tomlinson M, Ambroze MA, Wade G IEEE International Conference on Communications, ICC 02, pp.2943 - 2946, 2002 More details & download link (if available)...

18 Conference papers

Patents granted

A system for the correction of missing or deleted symbols Tomlinson M, Cai J, Tjhai CJ, Ambroze MA, Ahmed MZ Intellectual Property Office, UK Patent GB2421599, 2006 Filed: 22/12/2004; A Published: 28/06/2006; B Published: 08/10/2008 More details & download link (if available)...

Improved error correction decoder Tomlinson M, Tjhai CJ, Ahmed MZ, Ambroze MA Intellectual Property Office, UK Patent GB2426671, 2005 Filed: 09/02/2005; A Published: 29/11/2006; B Published: 19/09/2007 More details & download link (if available)...

Cyclic redundancy check for error correcting codes with minimal code rate loss Rogers AJ, Ambroze MA, Tomlinson M Intellectual Property Office, UK Patent GB2407945, 2003 Filed: 25/10/2003; A Published: 11/05/2005; B Published: 19/04/2006 More details & download link (if available)...

Improved Iterative Decoder for LDPC Codes with Performance Approximating to a Maximum Likelihood Decoder Papagiannis E, Ambroze MA, Tomlinson M Intellectual Property Office, UK Patent GB2405562 2003 Filed: 28/08/2003; A Published: 02/03/2005; B Published: 08/03/2006 More details & download link (if available)

4 Patents granted

37 Publication(s) - all categories.

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