Dr Adrian Ambroze
Profiles

Dr Adrian Ambroze

Associate Professor of Digital Communications Engineering

School of Engineering, Computing and Mathematics (Faculty of Science and Engineering)

Adrian can be contacted through arrangement with our Press Office, to speak to the media on these areas of expertise.
  • Digital rights management
  • Video and image processing
  • Data compressing
  • Wireless error correction
  • Multimedia communications
  • Engineering - software

MEng/BEng/BSc/MSc Electrical and Electronic Engineering Programme Manager

MSc Admission Tutor

Admissions/Recruitment Tutor with ESEO Angers at Undergraduate and MSc level

Module leader for ELEC140, ELEC142, ELEC238, ELEC239, ELEC518 and participate in the delivery of the ELEC143 Immersive Module.

PhD projects: I currently supervise 7 students (of which 3 as DoS) and I have 16 completions (of which 5 as DoS). Whilst most projects are in communications and source coding (including steganography and watermarking), I also have projects in big data, improved location algorithms, power electronics, security applications (wiretap channels, RFID), education and CAD simulation for engineering applications.

PhD Examiner Experience: Internal examiner for 6 PhD students, External examiner for 1 PhD student.

Qualifications

PhD in Digital Communications, University of Plymouth (2000)

BEng Telecommunications Engineering (First Class Hons), Technical University of Cluj-Napoca, Romania (1996)

 

Professional membership

MIEEE (Member of Institute of Electrical and Electronic Engineers)

 

Roles on external bodies

Reviewer for:

Electronics Letters

EPSRC

IEEE Transactions on Information Theory

IEEE Transactions on Communications

IEEE Transactions on Image Processing

IEEE Signal Processing Letters

IET Proceedings Vision and Image Processing

IET Proceedings Communications.

Teaching interests

I teach digital electronics and embedded programming, telecommunications systems principles, source and channel coding and information theory to undergraduate and MSc students,

ELEC518: Digital And Wireless Communications (S1, EEE programme, MSc) *

ELEC238/239: Communication Systems (S1, EEE Stage 2) *

ELEC140/142: Digital Electronics (S2, EEE/Robotics Stage 1) *

* Module Leader

Research interests

Source and Channel Coding, Coding with Side Information, Information and Coding Theory. I am especially intrigued by the rate loss in some cases of side information (e.g. binary symmetric) and not others (e.g. Gaussian), the links with correlation and random variable dependence and the central role of Gaussian distributions.

Lossless Data Compression, correlated source coding (Slepian-Wolf and Wiener-Ziv practical code design).

Signal Processing (particularly for communications, image and video processing, more currently medical image processing for early detection of tumours).

Satellite and wireless communications as applications of signal processing, coding and modulation design.

Communications channels, practical code design and theoretical limits. Design of capacity approaching codes for channel and source coding, with or without side information. 

The link between iterative decoding of communications codes and neural networks (belief propagation).

Last (but not least) I enjoy writing complex communications algorithm simulations in C++, including fast searching for good permutations, the wonders of tree search, finding minimum distances and identifying trapping sets in iterative decoding, visualising extrinsic information exchanges, providing a practical check for my ever expanding interest in mathematics, probability distributions and information theory. For all that and more, I found C++ an extremely powerful tool.

Grants & contracts

CI: EU Marie Curie Grant, AiPBAND - An Integrated Platform for Developing Brain Cancer Diagnostic Techniques (Euro 3.7 Million).

PI: KTP Bombardier Transportation, Coded Track Circuit  (£93K) (REF2014 case study, judged 80% World Leading).

PI: UoPE TRL Project, Digital Video Compression with Low Latency (£56K) 

Key publications

Key publications are highlighted

Journals
Articles
Ambroze A, Wade G, Serdean C, Tomlinson M, Stander J & Borda M 2001 'Turbo code protection of video watermark channel' Vision, Image and Signal Processing, IEE Proceedings - 148, 54-58-54-58 , DOI
Alkanhel R & Ambroze MA 2017 'Optimizing the Decoding Complexity of PEG-Based Methods with an Improved Hybrid Iterative/Gaussian Elimination Decoding Algorithm' Advances in Science, Technology and Engineering Systems Journal 2, (3) 578-586 , DOI
Al-bayaty H, Ambroze M & Ahmed MZ 2017 'New effective power terms and right-angled triangle (RAT) power theory' International Journal of Electrical Power & Energy Systems 88, 133-140 , DOI Open access
Mansfield TO, Ghita BV & Ambroze MA 2017 'Signals of opportunity geolocation methods for urban and indoor environments' Annals of Telecommunications 72, (3-4) 145-155 , DOI Open access
Shah P, Ahmed M, Ambroze M, Tjhai C & Davey PJ 2007 'Novel Soft-Feedback Equalization Method for Multilevel Magnetic Recording' Magnetics, IEEE Transactions on 43, 2280-2282-2280-2282 , DOI
Tomlinson M, Ferrari M & Ambroze A 2002 'Search for good b/(b + 1) high rate recursive systematic convolutional component codes' Electronics Letters 38, 1691-1693-1691-1693 , DOI
Ambroze A, Wade G & Tomlinson M 2000 'Practical aspects of iterative decoding' Communications, IEE Proceedings- 147, 69-74-69-74 , DOI
Ambroze A, Wade G & Tomlinson M 1998 'Iterative MAP decoding for serial concatenated convolutional codes' Communications, IEE Proceedings- 145, 53-59-53-59 , DOI
Ambroze A, Wade G & Tomlinson M 1998 'Turbo code tree and code performance' Electronics Letters 34, 353-354-353-354 , DOI
Tomlinson M, Bezzateev SV, Jibril M, Ambroze MA & Ahmed MZ 2015 'Using the Structure of Subfields in the Construction of Goppa Codes and Extended Goppa Codes' IEEE Transactions on Information Theory 61, (6) 3214-3224 , DOI
Ambroze MA, Martin PA, Tomlinson M & Taylor DP 2015 'Multi‐user indoor ultra‐wideband wireless communication using polyphase spreading sequences' IET Communications 9, (5) 585-595 , DOI Open access
Rosnes E, Ambroze MA & Tomlinson M 2014 'On the Minimum/Stopping Distance of Array Low-Density Parity-Check Codes' IEEE Transactions on Information Theory 60, (9) 5204-5214 , DOI Open access
Zhang K, Tomlinson M, Ambroze M, Ahmed MZ & Rodrigues MRD 2014 'Best binary equivocation code construction for syndrome coding' IET Communications 8, (10) 1696-1704 , DOI Open access
Ambroze M & Tomlinson M 2014 'Performance of BCH codes with (1 + x ) s error detection' Electronics Letters 50, (1) 32-34 , DOI Open access
Rosnes E, Ytrehus O, Ambroze MA & Tomlinson M 2012 'An Efficient Algorithm to Find All Small-Size Stopping Sets of Low-Density Parity-Check Matrices (vol 55, pg 4167, 2009)' IEEE TRANSACTIONS ON INFORMATION THEORY 58, (1) 164-171 Author Site , DOI
Martin PA, Ambroze MA, Taylor DP & Tomlinson M 2009 'Coding for Shared Satellite Channel Communications' IEEE TRANSACTIONS ON COMMUNICATIONS 57, (8) 2330-2338 Author Site , DOI
Xu X, Tomlinson M, Ambroze M & Ahmed M 2009 'Biorthogonal matrix dirty paper coding for information hiding in still images' Journal of Digital Information Management 7, (2) 96-105
Tomlinson M, Tjhai C, Cai J & Ambroze M 2007 'Analysis of the distribution of the number of erasures correctable by a binary linear code and the link to low-weight codewords' Communications, IET 1, 539-548-539-548 , DOI
Tomlinson M, Tjhai C & Ambroze M 2007 'Extending the Dorsch decoder towards achieving maximum-likelihood decoding for linear codes' Communications, IET 1, 479-488-479-488 , DOI
Horan R, Tjhai C, Tomlinson M, Ambroze M & Ahmed M 2006 'Idempotents, Mattson-Solomon polynomials and binary LDPC codes' Communications, IEE Proceedings- 153, 256-262-256-262 , DOI
Tjhai C, Tomlinson M, Grassl M, Horan R, Ahmed M & Ambroze M 2006 'New linear codes derived from binary cyclic codes of length 151' Communications, IEE Proceedings- 153, 581-585-581-585
Tjhai C, Tomlinson M, Ambroze M & Ahmed M 2005 'Cyclotomic idempotent-based binary cyclic codes' Electronics Letters 41, 341-343-341-343 , DOI
Ambroze MA, Wade G & Tomlinson M 2003 'Dependence of dfree in MPCCC systems' Communications, IEEE Transactions on 51, 318-325-318-325 , DOI
Serdean CV, Ambroze MA, Tomlinson M & Wade JG 2003 'DWT-based high-capacity blind video watermarking, invariant to geometrical attacks' Vision, Image and Signal Processing, IEE Proceedings - 150, 51-58-51-58 , DOI
Tomlinson M, Wade G, Van-Eetvelt P & Ambroze A 2002 'Bounds for finite block-length codes' Communications, IEE Proceedings- 149, 65-69-65-69 , DOI
Conference Papers
Al-Adhami AH, Ambroze M, Stengel I & Tomlinson M 2019 'An Effencient Improvement of RFID Authentication Protocol Using Hash Function ZKP' 2019 2nd Scientific Conference of Computer Sciences (SCCS) 3-/-0/20193-/-0/2019IEEE , DOI
Alkanhel R & Ambroze MA 2017 'Decoding complexity analyses of PEG-based methods with the improved hybrid iterative/Gaussian elimination decoding algorithm' 2017 International Conference on Electrical and Computing Technologies and Applications (ICECTA) 1-/-1/20171-/-1/2017IEEE , DOI
Eleruja S, Abdu-Aguye U-F, Ambroze M, Tomlinson M & Zak M 2017 'Design of binary LDPC codes for Slepian-Wolf coding of correlated information sources' 2017 IEEE Global Conference on Signal and Information Processing (GlobalSIP) 1-/-1/20171-/-1/2017IEEE , DOI
Almustapha MD, Ahmed MZ, Ambroze MA & Abdulrazaq MB 2017 '2D BCJR along track and across tracks detection for shingled magnetic recording media' 2017 40th International Conference on Telecommunications and Signal Processing (TSP) 7-/-0/20177-/-0/2017IEEE , DOI
Al-Adhami A, Ambroze M, Stengel I & Tomlinson M 2017 'A 256 bit implementation of ECC-RFID based system using Shamir secret sharing scheme and Keccak hash function' 2017 Ninth International Conference on Ubiquitous and Future Networks (ICUFN) 7-/-0/20177-/-0/2017IEEE , DOI
Abdu-Aguye U-F, Ambroze MA & Tomlinson M 2016 'An efficient algorithm for determining the girth and ACE distributions in LDPC code Tanner graphs' 2016 10th International Conference on Signal Processing and Communication Systems (ICSPCS) 2-/-1/20162-/-1/2016IEEE , DOI
al-bayaty H, Al-Omari AH, Ambroze M & Ahmed MZ 2017 'A novel topology for single phase active PFC circuit' 2017 IEEE International Conference on Environment and Electrical Engineering and 2017 IEEE Industrial and Commercial Power Systems Europe (EEEIC / I&CPS Europe) 6-/-0/20176-/-0/2017IEEE , DOI
Almustapha MD, Ahmed MZ, Ambroze MA & Abdulrazaq MB 2017 'Multi-track 2D joint signal detection and decoding for TDMR system using single parity-check coding' 2017 IEEE 30th Canadian Conference on Electrical and Computer Engineering (CCECE) 4-/-0/20175-/-0/2017IEEE , DOI Open access
Abdu-Aguye U-F, Ambroze MA & Tomlinson M 2016 'Lowering the error floor of short-to-medium length LDPC codes using optimal low-correlated-edge density (OED) PEG Tanner graphs' 2016 24th International Conference on Software, Telecommunications and Computer Networks (SoftCOM) 9-/-0/20169-/-0/2016IEEE , DOI
Al-Obaidi S, Ambroze M, Outram N & Ghita B 2017 'Bit precision and Cyclic prefix effect on OFDM Power Consumption Estimation' the 5th International Conference 2-/-0/20172-/-0/2017ACM Press , DOI Open access
Abdu-Aguye U-F, Ambroze MA & Tomlinson M 2016 'Improved minimum weight, girth, and ACE distributions in ensembles of short block length irregular LDPC codes constructed using PEG and cyclic PEG (CPEG) algorithms' 2016 9th International Symposium on Turbo Codes and Iterative Information Processing (ISTC) 9-/-0/20169-/-0/2016IEEE , DOI
Al-Bayaty H, Ambroze M & Ahmed MZ 2016 'Utilization of harmonics current in single phase system' 0-/-1/20160-/-1/2015IEEE 443-447 , DOI Open access
Al-Adhami A, Ambroze M, Stengel I & Tomlinson M 2016 'A Quorum RFID System Using Threshold Cryptosystem' 2016 IEEE 4th International Conference on Future Internet of Things and Cloud (FiCloud) 8-/-0/20168-/-0/2016IEEE , DOI
Al-Adhami A, Ambroze M, Stengel I & Tomlinson M 2016 'A Quorum System for Distributing RFID Tags' 2016 Intl IEEE Conferences on Ubiquitous Intelligence & Computing, Advanced and Trusted Computing, Scalable Computing and Communications, Cloud and Big Data Computing, Internet of People, and Smart World Congress (UIC/ATC/ScalCom/CBDCom/IoP/SmartWorld) 7-/-0/20167-/-0/2016IEEE , DOI
Alkanhel R & Ambroze MA 2016 'Extended grouping of RFID tags based on progressive edge-growth methods' 2016 5th International Conference on Electronic Devices, Systems and Applications (ICEDSA) 2-/-1/20162-/-1/2016IEEE , DOI
Al-bayaty H, Ambroze M & Ahmed MZ 2016 'Feeding loads via harmonics utilization in AC circuit systems' 2016 International Conference for Students on Applied Engineering (ICSAE) 0-/-1/20160-/-1/2016IEEE , DOI
Rosnes E, Ambroze MA & Tomlinson M 2014 'An upper bound on the minimum distance of array low-density parity-check codes' 2014 IEEE International Symposium on Information Theory (ISIT) 6-/-0/20147-/-0/2014IEEE , DOI
Flayyih BM, Ahmed MZ & Ambroze M 2016 'An Optimum Harmonic Control of induction heating power supply system using multilevel neutral point clamped inverter' 2016 IEEE Transportation Electrification Conference and Expo, Asia-Pacific (ITEC Asia-Pacific) 6-/-0/20166-/-0/2016IEEE , DOI
Al-Obaidi S, Ambroze M, Ghita B, Giakoumidis E & Tsokanos A 2016 'A review on power consumption reduction techniques on OFDM' 3-8
Abdu-Aguye U-F, Ambroze MA & Tomlinson M 2016 'Lowering the error floor of short-to-medium length LDPC codes using optimal low-correlated-edge density (OED) PEG Tanner graphs' IEEE 1-5 Publisher Site
Al-bayaty H, Ambroze M & Ahmed MZ 2015 'A new power theory (right-angled triangle theory)' 2015 IEEE Conference on Energy Conversion (CENCON) 0-/-1/20150-/-1/2015IEEE , DOI
Al-bayaty H, Ambroze M & Ahmed MZ 2015 'The benefit of harmonics current using a new topology of hybrid active power filter' 2015 IEEE 5th International Conference on Power Engineering, Energy and Electrical Drives (POWERENG) 5-/-0/20155-/-0/2015IEEE , DOI
Al-bayaty H, Ambroze M & Ahmed MZ 2014 'Taking advantage of the harmonics at the load side using passive filters' 2014 2nd International Conference on Systems and Informatics (ICSAI) 1-/-1/20141-/-1/2014IEEE , DOI
Bashar Mohammed Flayyih, Mohammed Zaki Ahmed & Ambroze M 2014 'A novel hybrid votage-current fed induction heating power supply system using multilevel neutral point clamped inverter' 2014 IEEE International Energy Conference (ENERGYCON) 5-/-0/20145-/-0/2014IEEE , DOI
Mansfield TO, Ghita BV & Ambroze MA 2014 'Achieving improved network subscriber geo-location' 107-116
Yang L, Tomlinson M, Ambroze M & Cai J 2010 'Extended optimum decoding for LDPC codes based on exhaustive tree search algorithm' 208-212 , DOI
Yang L, Tomlinson M & Ambroze M 2010 'Decoding low-density parity-check codes with error-floor free over the AWGN channel' 192-196-192-196 , DOI
Isnin IF, Tomlinson M, Ahmed MZ & Ambroze M 2010 'Path loss measurements and comparisons of 433 MHz, 869 MHz and 1249 MHz within multi-floored buildings'
Isnin IF, Tomlinson M, Ahmed MZ & Ambroze M 2009 '1.25 GHz path loss prediction models for multifloored buildings' Publisher Site , DOI
Ferrari M, Bellini S, Ambroze A & Tomlinson M 2008 'A II-HARQ scheme for BEC models with ML decoding of Turbo Codes' 76-80-76-80 , DOI
Yang L, Ambroze M & Tomlinson M 2008 'Comparison of decoding turbo Gallager codes in hybrid decoding arrangements with different iterative decoders over the erasure channel' 253-257-253-257 , DOI
Tjhai C, Tomlinson M, Ambroze M & Ahmed M 2008 'On the Weight Distribution of the Extended Quadratic Residue Code of Prime 137' 1-6-1-6
Ambroze M, Tomlinson M, Tjhai C & Ahmed M 2007 'Analysis of the Distribution of the Number of Correctable Erasures for Turbo Codes with DRP Interleavers' 214-217-214-217 , DOI
Xu X, Tomlinson M, Ambroze M & Ahmed M 2007 'Biorthogonal matrix dirty paper coding for information hiding in still images' 454-459-454-459 , DOI
Martin P, Taylor D, Ambroze M & Tomlinson M 2006 'Coding for Shared Satellite Channel Communications' 2006 10th IEEE Singapore International Conference on Communication Systems 0-/-1/20061-/-1/2006IEEE , DOI
Horan R, Tjhai C, Tomlinson M, Ambroze M & Ahmed M 2005 'A finite-field transform domain construction of binary low-density parity-check codes' 5 pp.--5 pp.- , DOI
Cai J, Tomlinson M, Tjhai C, Ambroze M & Ahmed M 2006 'Advances in Iterative Decoding and Maximum Likelihood Decoding for the Packet Network with Comparisons to Fountain Codes over the Erasure Channel' 1-5-1-5
Papagiannis E, Ambroze MA, Tomlinson M & Ahmed MZ 2005 'Improved Decoding of Low-density Parity-check Codes by Reduction of Pseudocodewords'
Cai J, Tomlinson M, Tjhai C, Ambroze M & Ahmed M 2006 'Advances in iterative decoding and maximum likelihood Decoding for the packet network with comparisons to fountain codes over the erasure Channel'
Martin PA, Taylor DP, Ambroze MA & Tomlinson M 2006 'Coding for Shared Satellite Channel Communications' 1-4-1-4 , DOI
Cai J, Tomlinson M, Tjhai C, Ambroze M & Ahmed M 2006 'Comparison of Concatenated Reed-Solomon Coding with Hard-decision to Soft-decision LDPC Coding for the Rayleigh Fading Channel' 135-139-135-139 , DOI
Xu X, Tomlinson M, Ambroze M & Ahmed MZ 2006 'Comparisons of orthogonalisation and writing on dirty paper schemes for high capacity watermarking'
Tjhai C, Tomlinson M, Horan R, Ahmed M & Ambroze M 2006 'GF(2<sup>m</sup>) Low-density parity-check codes derived from cyclotomic cosets'
Tjhai C, Tomlinson M, Horan R, Ahmed M & Ambroze M 2006 'GF(21<sup>m</sup>) low-density parity-check codes derived from cyclotomic cosets'
Xu X, Tomlinson M, Ambroze M & Ahmed M 2006 'NIS07-6: Comparisons of Orthogonalisation and Writing-On-Dirty-Paper Schemes for High Capacity Watermarking' 1-5-1-5 , DOI
Tjhai C, Tomlinson M, Horan R, Ahmed M & Ambroze M 2006 'On the Efficient Codewords Counting Algorithm and the Weight Distributions of the Binary Quadratic Double-Circulant Codes' 42-46-42-46 , DOI
Tjhai C, Tomlinson M, Horan R, Ahmed M & Ambroze M 2006 'Some results on the weight distributions of the binary double-circulant codes based on primes' 2006 10Th Ieee Singapore International Conference on Communication Systems, Vols 1 and 2 343-347
Tjhai C, Tomlinson M, Horan R, Ahmed M & Ambroze M 2006 'Some Results on the Weight Distributions of the Binary Double-Circulant Codes Based on Primes' 1-5-1-5 , DOI
Ahmed MZ, Papagiannis E, Tjhai C, Ambroze M & Tomlinson M 2005 'Improved Iterative Decoding for Perpendicular Magnetic Recording' Ambleside
Horan R, Tjhai C, Tomlinson M, Ambroze M & Ahmed M 2005 'A finite-field transform domain construction of binary low-density parity-check codes' Proceedings of the Ieee Itsoc Information Theory Workshop 2005 on Coding and Complexity 77-81
Cai J, Tjhai CJ, Tomlinson M, Ambroze MA & Ahmed MZ 2005 'An Efficient Solution to Packet Loss : Erasure Correcting Codes'
Tjhai CJ, Tomlinson M, Ambroze MA & Ahmed MZ 2005 'Near Maximum-Likelihood Performance of some New Cyclic Codes Constructed in the Finite-Field Transform Domain'
Papagiannis E, Ambroze MA & Tomlinson M 2004 'Approaching the ML performance with iterative decoding' 2004 International Zurich Seminar on Communications: Access-Transmission-Networking, Proceedings 220-223
Rogers AJ, Tomlinson M, Ambroze MA & Ahmed MZ 2004 'Enhancement of turbo codes using cyclic redundancy check with interleaver optimisation' 508--508- , DOI
Ambroze M, Tomlinson M, Serdean C & Wade G 2003 'Limits of error correction coding in video watermarking' 594-603
Ambroze A, Tomlinson M & Wade G 2003 'Magnitude modulation for small satellite Earth terminals using QPSK and OQPSK' 2099-2103 vol.3-2099-2103 vol.3 , DOI
Wade G, Fu M, Jakobs R, Ning J, Tomlinson M & Ambroze A 2002 'On CPM System Design and Simulation' 55-60
Serdean CV, Ambroze MA, Tomlinson M & Wade JG 2002 'Adding robustness to geometrical attacks to a wavelet based, blind video watermarking system' 557-560 vol.1-557-560 vol.1 , DOI
Serdean CV, Ambroze MA, Tomlinson M & Wade G 2002 'Combating geometrical attacks in a DWT based blind video watermarking system' 263-266-263-266 , DOI
Tomlinson M, Ambroze M & Wade G 2002 'Power and bandwidth efficient modulation and coding for small satellite communication terminals' 2943-2946 vol.5-2943-2946 vol.5 , DOI
Patents
2009 Error Correction System using the Discrete Fourier Transform. US 12/057,781
2009 Error correction system using concatenated codes.
2008 Password Correction and Confidential Information Access System. GB2446420
2008 Concatenated Coding System. GB2445005
2007 Impression of Information on Noise or an Independent Signal. GB2427800
2004 A system for the correction of missing or deleted symbols.