Ioannis Chatzigeorgiou
Senior Lecturer
School of Computing and Communications
Postal address:
Lancaster University
InfoLab21
LA1 4WA
Lancaster
Email: i.chatzigeorgiou@lancaster.ac.uk
Phone: +44 1524 510304

SUMMARY of research interests (100 words)

My research interests lie in the general area of communication theory and include the modelling, analysis, performance evaluation and design of communication systems. My focus has been on coding schemes for multiple-antenna systems and cooperative networks. I am particularly intested in random linear network coding over finite fields and noise decoding, e.g., guessing random additive noise decoding (GRAND), from a throughput but also from a security perspective.

Research output

A lower bound on the success probability of binary random linear network codes aided by noise decoding

Chatzigeorgiou, I., 5/06/2025, (E-pub ahead of print) In: IEEE Open Journal of the Communications Society. 17 p.

Guessing random additive noise decoding of network coded data transmitted over burst error channels

Chatzigeorgiou, I. & Savostyanov, D., 30/09/2024, In: IEEE Transactions on Vehicular Technology. 73, 9, p. 12842-12857 16 p.

Symbol-level GRAND for high-order modulation over block fading channels

Chatzigeorgiou, I. & Monteiro, F., 1/02/2023, In: IEEE Communications Letters. 27, 2, p. 447-451 5 p.

URLLC with coded massive MIMO via random linear codes and GRAND

Allahkaram, S., Monteiro, F. & Chatzigeorgiou, I., 18/01/2023, 2022 IEEE 96th Vehicular Technology Conference (VTC2022-Fall). IEEE, p. 1-5 5 p. (IEEE Vehicular Technology Conference ; vol. 2022-Sep).

An adaptive column compression family for self-driving databases

Fehér, M., Lucani, D. & Chatzigeorgiou, I., 7/09/2022. 11 p.

The impact of partial packet recovery on the inherent secrecy of random linear coding

Chatzigeorgiou, I., 25/08/2022, 2022 IEEE 95th Vehicular Technology Conference: (VTC2022-Spring). IEEE, p. 1-6 6 p. (IEEE Vehicular Technology Conference; vol. 2022-June).

Transversal GRAND for network coded data

Chatzigeorgiou, I., 3/08/2022, 2022 IEEE International Symposium on Information Theory, ISIT 2022. IEEE, p. 1773-1778 6 p. (IEEE International Symposium on Information Theory - Proceedings; vol. 2022-June).

Spark optimization of linear codes for reliable data delivery by relay drones

Chatzigeorgiou, I., 30/12/2021, MILCOM 2021 - 2021 IEEE Military Communications Conference (MILCOM). IEEE, 6 p.

Low Complexity Optimization of the Asymptotic Spectral Efficiency in Massive MIMO NOMA

Hadley, L. & Chatzigeorgiou, I., 1/11/2020, In: IEEE Wireless Communications Letters. 9, 11, p. 1928-1932 5 p.

Decoding probability analysis of network-coded data collection and delivery by relay drones

Chatzigeorgiou, I. & Manole, E., 8/10/2020, 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). IEEE

The impact of 5G channel models on the performance of intelligent reflecting surfaces and decode-and-forward relaying

Chatzigeorgiou, I., 8/10/2020, 2020 IEEE 31st Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). IEEE, 4 p.

Random linear network coding based physical layer security for relay-aided device-to-device communication

Saeed Khan, A., Chatzigeorgiou, I., Zheng, G., Basulti, B., Chuma, J. & Lambotharan, S., 22/04/2020, In: IET Communications. 14, 7, p. 1155-1161 7 p.

On the decoding failure probability of random network coded cooperation

Chatzigeorgiou, I., Karabulut Kurt, G., Tedik Basaran, S. & Saeed Khan, A., 05/2019, 2019 IEEE 89th Vehicular Technology Conference (VTC Spring). IEEE, 5 p.

Network-coded NOMA with antenna selection for the support of two heterogeneous groups of users

Saeed Khan, A., Chatzigeorgiou, I., Lambotharan, S. & Zheng, G., 02/2019, In: IEEE Transactions on Wireless Communications. 18, 2, p. 1332-1345 14 p.

On the performance of NCC-OFDMA with single relay selection

Tedik Basaran, S., Karabulut Kurt, G. & Chatzigeorgiou, I., 23/10/2018, Global Information Infrastructure and Networking Symposium (GIIS), 2018. IEEE, 4 p.

Random linear network coding for satellite-aided flight data streaming

Chatzigeorgiou, I. & Price, C., 9/09/2018, 2018 IEEE 29th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC). IEEE, 5 p.

Opportunistic relaying and random linear network coding for secure and reliable communication

Khan, A. S. & Chatzigeorgiou, I., 01/2018, In: IEEE Transactions on Wireless Communications. 17, 1, p. 223-234 12 p.

Non-orthogonal multiple access combined with random linear network coded cooperation

Khan, A. S. & Chatzigeorgiou, I., 09/2017, In: IEEE Signal Processing Letters. 24, 9, p. 1298-1302 5 p.

Probability of partially decoding network-coded messages

Claridge, J. & Chatzigeorgiou, I., 09/2017, In: IEEE Communications Letters. 21, 9, p. 1945-1948 4 p.

Decoding delay performance of random linear network coding for broadcast

Chatzigeorgiou, I. & Tassi, A., 08/2017, In: IEEE Transactions on Vehicular Technology. 66, 8, p. 7050-7060 11 p.

Editorial - Special Issue on Network Coding

Monteiro, F., Burr, A., Chatzigeorgiou, I., Hollanti, C., Krikidis, I., Seferoglu, H. & Skachek, V., 13/04/2017, In: EURASIP Journal on Advances in Signal Processing. 2017, 1, 3 p.

Improved bounds on the decoding failure probability of network coding over multi-source multi-relay networks

Khan, A. S. & Chatzigeorgiou, I., 10/2016, In: IEEE Communications Letters. 20, 10, p. 2035-2038 4 p.

Analysis and optimization of sparse random linear network coding for reliable multicast services

Tassi, A., Chatzigeorgiou, I. & Lucani, D., 01/2016, In: IEEE Transactions on Communications. 64, 1, p. 285-299 15 p.

Rethinking the intercept probability of random linear network coding

Khan, A., Tassi, A. & Chatzigeorgiou, I., 8/10/2015, In: IEEE Communications Letters. 19, 10, p. 1762-1765 4 p.

Binary systematic network coding for progressive packet decoding

Jones, A., Chatzigeorgiou, I. & Tassi, A., 8/06/2015, IEEE International Conference on Communications (ICC): Communication Theory Symposium. IEEE, p. 4499-4504 6 p.

Optimized network-coded scalable video multicasting over eMBMS networks

Tassi, A., Chatzigeorgiou, I., Vukobratovic, D. & Jones, A., 8/06/2015, IEEE International Conference on Communications (ICC): Mobile and Wireless Networking Symposium. IEEE, p. 3069-3075 7 p.

Performance analysis of random linear network coding in two-source single-relay networks

Khan, A. & Chatzigeorgiou, I., 8/06/2015, IEEE International Conference on Communications (ICC) Workshops: Workshop on Cooperative and Cognitive Networks (CoCoNet). IEEE, p. 991-996 6 p.

Resource allocation frameworks for network-coded layered multimedia multicast services

Tassi, A., Chatzigeorgiou, I. & Vukobratovic, D., 5/03/2015, In: IEEE Journal on Selected Areas in Communications. 33, 2, p. 141-155 15 p.

Conditions for cooperative transmission on Rayleigh fading channels

Chatzigeorgiou, I., 14/09/2014, Vehicular Technology Conference (VTC Fall), 2014 IEEE 80th. IEEE, 6 p.

Performance assessment of fountain-coded schemes for progressive packet recovery

Jones, A., Chatzigeorgiou, I. & Tassi, A., 07/2014, 9th International Symposium on Communication Systems, Networks & Digital Signal Processing (CSNDSP). Manchester: IEEE, p. 679-684 6 p.

Bounds on the Lambert function and their application to the outage analysis of user cooperation

Chatzigeorgiou, I., 16/08/2013, In: IEEE Communications Letters. 17, 8, p. 1505-1508 4 p.

Quantifying network conditions for the support of cooperative over non-cooperative communication

Chatzigeorgiou, I., 08/2012, Wireless Communication Systems (ISWCS), 2012 International Symposium on. Paris: IEEE, p. 221-225 5 p.

Optimization of random selection and forwarding for multiple-relay networks

Chatzigeorgiou, I. & Tarable, A., 09/2011, IEEE 22nd International Symposium on Personal Indoor and Mobile Radio Communications (PIMRC), 2011. New York: IEEE, p. 1835-1839 5 p.

Exact and Asymptotic Outage Probability Analysis for Decode-and-Forward Networks

Chatzigeorgiou, I., Guo, W., Wassell, I. J. & Carrasco, R. A., 02/2011, In: IEEE Transactions on Communications. 59, 2, p. 376-381 6 p.

Scalable Cross-Layer Wireless Access Control Using Multi-Carrier Burst Contention

Roman, B., Wassell, I. & Chatzigeorgiou, I., 01/2011, In: IEEE Journal on Selected Areas in Communications. 29, 1, p. 113-128 16 p.

Survey and analysis of power control for collaborative networks

Guo, W., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 07/2010, 7th International Symposium on Communication Systems, Networks and Digital Signal Processing. IEEE, p. 913-918 6 p.

Power control for turbo coded symmetrical collaborative networks

Guo, W., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 06/2010, 11th IEEE International Workshop on Signal Processing Advances in Wireless Communications. IEEE, p. - 5 p.

Error Probability Analysis of Unselfish Cooperation over Quasi-static Fading Channels

Chatzigeorgiou, I., Guo, W., Wassell, I. J. & Carrasco, R., 05/2010, IEEE 71st Vehicular Technology Conference (VTC 2010 - Spring). New York: IEEE, p. - 5 p.

Partner selection and power control for asymmetrical collaborative networks

Guo, W., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 05/2010, IEEE 71st Vehicular Technology Conference (VTC 2010-Spring). IEEE, p. - 5 p.

Performance-complexity tradeoff of convolutional codes for broadband fixed wireless access systems

Chatzigeorgiou, I., Demosthenous, A., Rodrigues, M. R. D. & Wassell, I. J., 5/03/2010, In: IET Communications. 4, 4, p. 419-427 9 p.

Randomly select and forward: Erasure probability analysis of a probabilistic relay channel model

Tarable, A., Chatzigeorgiou, I. & Wassell, I. J., 10/2009, 2009 IEEE Information Theory Workshop. Taormina : IEEE, p. 41-45 5 p.

Evaluation of multi-carrier burst contention and IEEE 802.11 with fading during channel sensing

Roman, B., Chatzigeorgiou, I., Wassell, I. J. & Stajano, F., 09/2009, IEEE 20th International Symposium on Personal, Indoor and Mobile Radio Communications, 2009. Tokyo: IEEE, p. 57-61 5 p.

Analysis and Design of Punctured Rate-1/2 Turbo Codes Exhibiting Low Error Floors

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R. A., 08/2009, In: IEEE Journal on Selected Areas in Communications. 27, 6, p. 944-953 10 p.

Design considerations and algorithms for broadband fixed WiMAX systems

Xiao, P., Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 07/2009, VLSI and Computer Architecture. Watanabe, K. (ed.). New York: Nova Science, p. 1-40

Packet error probability for decode-and-forward cooperative networks of selfish users

Chatzigeorgiou, I., Guo, W., Wassell, I. J. & Carrasco, R., 07/2009, 10th International Symposium on Communication Theory and Applications. 5 p.

Performance analysis and adaptive power control for block coded collaborative networks

Guo, W., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 07/2009, IWCMC '09 Proceedings of the 2009 International Conference on Wireless Communications and Mobile Computing: Connecting the World Wirelessly . New York: ACM, p. 854-858 5 p.

The Augmented State Diagram and its Application to Convolutional and Turbo Codes

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R. A., 07/2009, In: IEEE Transactions on Communications. 57, 7, p. 1948-1958 11 p.

Threshold-based frame error rate analysis of MIMO systems over quasistatic fading channels

Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 12/02/2009, In: Electronics Letters. 45, 4, p. 216-217 2 p.

Performance analysis of turbo codes in quasi-static fading channels

Rodrigues, M. R. D., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 03/2008, In: IET Communications. 2, 3, p. 449-461 13 p.

Revisiting the calculation of effective free distance of turbo codes

Chatzigeorgiou, I. & Wassell, I. J., 3/01/2008, In: Electronics Letters. 44, 1, p. 43-44 2 p.

Comparison of cooperative schemes using joint channel coding and high-order modulation

Chatzigeorgiou, I., Guo, W., Wassell, I. J. & Carrasco, R., 2008, Communications, Control and Signal Processing, 2008. ISCCSP 2008. 3rd International Symposium on. New York: IEEE, p. 994-998 5 p.

On the frame error rate of transmission schemes on quasi-static fading channels

Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 2008, Information Sciences and Systems, 2008. CISS 2008. 42nd Annual Conference on. New York: IEEE, p. 577-581 5 p.

Comparison of frequency and time domain schemes for MIMO broadband fixed wireless access

Xiao, P., Chatzigeorgiou, I., Carrasco, R. & Wassell, I. J., 11/2007, 2007 IEEE Global Communications Conference. Washington, DC: IEEE, p. 3051-3056 6 p.

Comparison of convolutional and turbo coding schemes for broadband FWA systems

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 06/2007, In: IEEE Transactions on Broadcasting. 53, 2, p. 494-503 10 p.

A union bound approximation for rapid performance evaluation of punctured turbo codes

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 2007, 41st Annual Conference on Information Sciences and Systems. NEW YORK: IEEE, p. 474-479 6 p.

On the performance of iterative demapping and decoding techniques over quasi-static fading channels

Carson, W. R., Chatzigeorgiou, I., Wassell, I. J., Rodrigues, M. R. D. & Carrasco, R., 2007, Personal, Indoor and Mobile Radio Communications, 2007. PIMRC 2007. IEEE 18th International Symposium on. New York: IEEE, p. 1522-1526 5 p.

Pseudo-random puncturing: a technique to lower the error floor of turbo codes

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 2007, Information Theory, 2007. ISIT 2007. IEEE International Symposium on. New York: IEEE, p. 656-660 5 p.

A novel technique for the evaluation of the transfer function of parallel concatenated convolutional codes

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 04/2006, 2006 4th International Symposium on Turbo Codes&Related Topics; 6th International ITG-Conference on Source and Channel Coding (TURBOCODING). Munich: IEEE, 6 p.

A Novel Technique To Evaluate the Transfer Function of Punctured Turbo Codes

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 2006, IEEE International Conference on Communications, 2006. ICC '06.. New York: IEEE, Vol. 3. p. 1166-1171 6 p.

Can punctured rate-1/2 turbo codes achieve a lower error floor than their rate-1/3 parent codes.?

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 2006, Proceedings of 2006 IEEE Information Theory Workshop. Fan, P., Li, P. & Yeung, R. (eds.). NEW YORK: IEEE, p. 91-95 5 p.

On the performance of turbo codes in quasi-static fading channels

Rodrigues, M. R. D., Chatzigeorgiou, I., Wassell, I. J. & Carrasco, R., 09/2005, 2005 IEEE International Symposium on Information Theory. IEEE, p. 622-626 5 p.

Punctured binary turbo-codes with optimized performance

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 2005, IEEE 62nd Vehicular Technology Conference (VTC 2005 - Fall). NEW YORK: IEEE, p. 1965-1969 5 p.

Turbo coded OFDM/SC-FDE techniques for MIMO broadband FWA channels

Chatzigeorgiou, I., Rodrigues, M. R. D., Wassell, I. J. & Carrasco, R., 12/2004, 1st International Symposium on Broadband Communications.

Projects

Innovation and Collaboration Network for Digitalization of Water: From Sensing to Knowledge Building

Chatzigeorgiou, I. (Principal Investigator)

15/01/23 → 14/01/25

Improving wireless information security by using physical layer dynamics

Ding, Z. (Principal Investigator), Chatzigeorgiou, I. (Co-Investigator) & Ni, Q. (Co-Investigator)

The Royal Society

16/03/15 → 15/03/17

Network error control for Rapid and Reliable Data Delivery (R2D2)

Chatzigeorgiou, I. (Principal Investigator)

EPSRC

1/02/14 → 31/07/15

Activities

Royal Society International Exchanges Panel (External organisation)

Chatzigeorgiou, I. (Member)

1/01/2025 → 31/12/2027

External Examiner for the MSc Signal Processing and Communications at the School of Engineering, University of Edinburgh

Chatzigeorgiou, I. (Examiner)

1/08/2024 → 1/11/2028

Using Random Linear Codes to Guess Random Errors

Chatzigeorgiou, I. (Speaker)

6/09/2023

Aarhus University

Chatzigeorgiou, I. (Visiting researcher)

16/05/2022 → 5/06/2022

Istanbul Technical University

Chatzigeorgiou, I. (Visiting researcher)

2/02/2018 → 7/02/2018

Resource allocation strategies for network-coded service delivery over LTE systems

Chatzigeorgiou, I. (Speaker)

3/06/2016

Resource allocation strategies for network-coded service delivery over LTE/LTE-A systems

Chatzigeorgiou, I. (Speaker)

4/11/2015 → 6/11/2015

Network coding for Rapid and Reliable Data Delivery

Chatzigeorgiou, I. (Speaker)

11/03/2015

Resource allocation frameworks for network-coded layered multicast services

Chatzigeorgiou, I. (Speaker)

5/02/2015

EURASIP Journal on Advances in Signal Processing (Journal)

Chatzigeorgiou, I. (Guest editor)

2015

Francisco Monteiro

Chatzigeorgiou, I. (Host)

3/07/2014 → 31/07/2014