Open Postdoc position in Electronics Field: Medium Access Control for Ultra-Reliable Low-latency communication for future 5G-IoT networks
Open Postdoc position in Electronics Field: Medium Access Control for Ultra-Reliable Low-latency communication for future 5G-IoT networks
Ultra-reliable and low-latency communication (URLLC) is one of the major service that will be supported by future 5G-IoT networks. Minimizing latency and increasing reliability opens new lucrative mission-critical IoT use-cases such as autonomous driving, drones, tele-surgery and industry automation. However, achieving URLLC introduces a plethora of challenges in terms of system design for 5G networks. The current cellular network has been designed for high spectral efficiency and rely on retransmission to achieve high reliability (typical BLER of 10-2). This is, however, not the case for URLLC due to the hard latency constraints (~1 ms) and reliability requirements (BLER of 10-9-10-5) .
Moreover, from the medium access control perspective, URLLC design becomes more challenging as it ought to satisfy two conflicting requirements: low latency and ultra-high reliability. On the one hand, minimizing latency mandates the use of short packets, which in turns causes a severe degradation in redundancy, parity bits. On the other hand, ensuring reliability requires more resources (e.g., parity, redundancy, and retransmissions) albeit increasing latency. Furthermore, URLLC calls for a system design in which all users (including cell edge users) connected to the radio access network must receive equal grade of service, for which the outage capacity is of interest, as opposed to the Ergodic capacity considered in 4G.
To address the challenges imposed by URLLC, some of the key enabling technologies and techniques currently under investigation are as follows:
- Short Frame structures for 5G (Orthogonal OFDM based): Reducing the TTI duration (e.g., from 1 ms in LTE to 0.125 ms as in 5G new radio) using fewer OFDM symbols per TTI and shortening OFDM symbol duration via wider subcarrier spacing is one of the potential solution to achieve URLLC .
- Edge caching and network slicing: Using the edge node for caching can significantly reduce latency. Network slicing is also set to play a pivotal role in allocating dedicated resources (i.e., caching/bandwidth/computing) for URLLC services .
- Grant-free access: In current cellular networks, user device requests scheduling from the base station and receives a grant that describes the resources on which the user device can transmit. However, this procedure takes time and an alternative could be so-called grant-free transmission has been in discussed at 3GPP meetings RAN#86 .
- Non-orthogonal multiple access (NOMA): NOMA using successive interference cancellation SIC or more advanced receiver schemes (e.g., message passing or Turbo reception) reduces latency by supporting more users than traditional orthogonal scheme. However, the impact on latency and reliability due to imperfect channel state information (CSI), user ordering, processing delay due to multiplexing and other dynamics are not well understood .
In this postdoc, the fundamental objective is to devise a novel medium access control protocol for enabling URLLC for 5G networks and beyond. In this regard, the first objective is to investigate and validate the above-mentioned techniques particularly short frame structure and grant-free access. Based on the investigation, the second target is to propose a novel radio resource management scheme (i.e., grant-free access based) to enable URLLC for specific use-case of mission critical applications. The third objective is to propose a medium access control based on the proposed resource management with caching/slicing concept for future IoT network and compare the performance of proposed orthogonal access scheme (OFDM based) with NOMA.
The candidate will be responsible for conducting research and possibly mentoring MSc and PhD students in research projects.
 H. Chen, R. Abbas, P. Cheng, M. Shirvanimoghaddam, W. Hardjawana, W. Bao, Y. Li, and B. Vucetic, “Ultra-Reliable Low Latency Cellular Networks : Use Cases , Challenges and Approaches,” Https://Arxiv.Org/Abs/1709.00560, 2017.
 M. Bennis, M. Debbah, and H. V. Poor, “Ultra-Reliable and Low-Latency Wireless Communication: Tail, Risk and Scale,” pp. 1–26, 2018.
 Nokia Alcatel-Lucent Shanghai Bell, “Transmission Options for the mMTC Grant-Free Uplink R1-1609783, 3GPP,” 2016.
Strong background in wireless communications in particular 3G/4G/5G access techniques; Very good analytical and programing skills. Candidates having experience with algorithm development and implementation will be considered. However, candidates having specific experience related to the topic will have definite advantage.
Application submission details:
Candidates should send the following information, as “One” .pdf or .doc attachment:
- CV, including list of publications, summary of educational background and grades
- Copy of PhD certificate
- Summary of work experience
- Short research statement specific to the above description (maximum 1 page)
- Names and email addresses of at least three references
- A soft copy of one or two recent publications considered by the candidate as being representatives of his/her research work
Documents should be sent by e-mail to firstname.lastname@example.org
April/May 2019 [RACT-5G-IoT and ANT2019]
On 29 April to 02 May 2019, Navuday Sharma and Yannick Le Moullec co-chaired the RACT-5G-IoT 2019 workshop (organized as part of the COEL project) during the ANT 2019 conference in Leuven, Belgium.
April 2019 [NATO SPS project meeting]
NATO-SPS G5482 "COUNTERTERROR: Public Safety Communication in the Context of Terrorist Attacks" We recently held our first face-to-face meeting in Tallinn.
More information and photos are available in this link.
April 2019 [Guest PhD student]
Welcome to Adrien Russo, guest PhD student from Université Côte d'Azur. Adrien will spend three months at T.J. Seebeck Department of Electronics to work on distribution of artificial neural networks in wireless sensors with applications to energy-efficient smart cities.
In this context, his PhD supervisors Francois Verdier and Benoit Miramond also visited our department to discuss the scientific and technical challenges of the research project.
April 2019 [Phd lecture]
Defence of the PhD Thesis "Algorithms for Learning and Adaptation Over Networks – Distributed Leader Selection" by Sander Ulp, 12/04/2019, 14:00, U02-208, Ehitajate tee 5, Tallinn
April 2019 [Public lecture]
Thomas Johann Seebeck Department of Electronics has a pleasure to host eminent guest from UK, Professor Muhammad Ali Imran. You are invited to his public lecture on the 12th of April (12:00-13:00) in the lecture room U02-409.
Topic: 5G Cellular Systems for Energy Efficient Operation
The cellular network have long been configured and optimised reactively by identifying events and triggers and readjusting the operation of the cellular system. Our research is paving the way to make a step change by introducing proactive techniques to pre-emptively trigger actions that will save the energy while maintaining a high level of quality of experience for end users. With the advent of ultra-dense deployment of networks, we need to use such mechanisms to schedule multi-level sleep modes of cells, mobility management as well as joint RAN-backhaul optimisation from energy efficiency perspective. We will cover the fundamental framework for the evaluation of energy efficiency and the state of the art as well as futuristic approaches and ideas to achieve energy efficient network management.
Muhammad Ali Imran (M'03, SM'12) Fellow IET, Senior Member IEEE, Senior Fellow HEA is a Professor of Wireless Communication Systems with research interests in self organised networks, wireless networked control systems and the wireless sensor systems. He heads the Communications, Sensing and Imaging CSI research group at University of Glasgow. He is an Affiliate Professor at the University of Oklahoma, USA and a visiting Professor at 5G Innovation Centre, University of Surrey, UK. He has over 20 years of combined academic and industry experience with several leading roles in multi-million pounds funded projects. He has filed 15 patents; has authored/co-authored over 400 journal and conference publications; was editor of 3 books and author of more than 20 book chapters; has successfully supervised over 40 postgraduate students at Doctoral level. He has been a consultant to international projects and local companies in the area of self-organised networks.
2019 [PUT project]
We are pleased to announce that we have been granted the personal research funding (PUT) team grant project PRG424 "Closed-loop communication system to support highly responsive neuromuscular assistive stimulation (1.01.2019−31.12.2023)" by the Estonian Research Council.
Autumn 2018 [First results of the collaboration with Telia Estonia]
On 21-26 October 2018, Peter Koch from Aalborg University (Denmark) visited us in the framework of the Erasmus+ programme. Link.
Autumn 2018 [Erasmus+ visit to Lab-STICC/Université Bretagne Sud, France]
On 24-28 September 2018, Yannick Le Moullec visited Lab-STICC/Université Bretagne Sud in the framework of the Erasmus+ programme. News on Université Bretagne Sud website (in French): link.
Summer 2018 [NATO SPS project]
On 1st June 2018 we kickstarted the NATO Science for Peace (SPS) project titled "Public Safety Communication in the Context of Terrorist Attacks" (NATO-SPS G5482).
The consortium comprises Thomas Johann Seebeck Department of Electronics at Tallinn University of Technology (Estonia), Dipartimento di Elettronica, Informazione e Bioingegneria at Politecnico di Milano (Italy), School of Electrical Engineering and Computer Science at National University of Sciences and Technology (Pakistan). In addition, the company Rantelon (Estonia) is acting as an end-user in the project.
Project on TTU website: ttu.ee/nato-sps
August 2018 [Summer School]
Professor Yannick Le Moullec and five students from Tallinn University of Technology are participating in the summer school organized by Beijing Institute of Technology, Beijing, China. The summer school is titled Belt and Road Student Summer Camp-Beijing. It runs from 29 July to 17 August 2018; the theme is Green and Autonomous Vehicles. Informal report: link.
July 2018 [Collaboration]
Professor Yannick Le Moullec visited NTUT, Taipei, Taiwan. Photo here.
June 2018 [Participation in ETSI SmartBAN standardisation]
On 5 June 2018, the COEL ERA-Chair holder, Muhammad Mahtab Alam, participated in the 16th Technical Committee Meeting of ETSI SmartBAN Standard in Geneva, Switzerland. This marks the beginning of our contributions to the on-going ETSI SmartBAN standardization effort; this will not only allow us to showcase the competences developped through the COEL project but will also give us the opportunity to network and collaborate with worldwide experts.
Photos are available here.
May 2018 [RACT-5G-IoT Workshop]
9 May 2018: the COEL ERA-Chair holder Muhammad Mahtab Alam chaired the RACT-5G-IoT workshop (organized as part of the COEL project) during ANT 2018 conference, Porto, Portugal. Photos here.
April 2018 [Collaboration]
2 April to 7 July 2018: PhD student Yohann Rioual from Lab-STICC/Université de Bretagne Sud is visiting us. During his stay, Yohann will work on issues related to reinforcement learning for energy management in low power IoT, approximate computing, and near-sensing computing. See photo here.
March 2018 [IEEE Internation Environmental Engineering Conference 2018]
Hassan Malik participated in the IEEE International Environmental Engineering Conference 2018. More details can be found by clicking here.
February 2018 [IEEE IoT World Forum]
Muhidul Islam Khan participated in the IEEE IoT World Forum. More details can be found by clinking here.
February 2018 [BEC 2018 Conference]
The webpage for the 16th Biennial Baltic Electronics Conference is now online:
May 27, 2018 - Deadline for submission of regular papers.
One of the topics is "Cognitive Systems and Communication", including wireless communication and systems (4G, 5G and beyond), RF and Optical aspects, Internet of things (LoRa, Sigfox, NB-IoT etc.), wearable sensor networks (on-body, off-body and body-to-body), Low-power platforms for communication, Cognitive networking.
Chair/Co-chair: Muhammad Mahtab Alam / Yannick Le Moullec
February 2018 [Winter School]
Thomas Johann Seebeck Department of Electronics, Department of Computer Systems and Department of Electrical Power Engineering and Mechatronics invite you to Tallinn Winter School "Smart Systems of Tomorrow"
The COEL ERA-Chair holder, Muhammad Mahtab Alam, and the COEL ERA-Chair Project Manager Alvar Kurrel participated in the first Widening Day, Brussels, Belgium, on Wednesday 08 November 2017. Photos are available here.
December 2017 [Collaboration]
December 2017 - COEL ERA-Chair Holder Associate Professor Muhammad Mahtab Alam went on a staff intra-EU mobility (ERASMUS+ Staff Exchange Programme), "Teaching at MSc and PhD level" - Politecnico di Milano, Italy. Photos here.
November 2017 [Invited Talk]
Muhammad Mahtab Alam, COEL ERA-Chair holder, gave a talk during the KIKK Festival 2017, and participated in the related TEKK Tour Digital Wallonia 2017, 2-7 November 2017, Namur, Belgium. Photos are available here.
October 2017 [Workshop approved]
We are pleased to announce that our workshop on "Recent Advances in Cellular Technologies and 5G for IoT Environments" has been approved.
The call for papers can be found by clicking here.
August 2017 [Project Management]
The second international steering committee meeting for the COEL ERA-Chair project will take place at Laboratoire d’Electronique, Antennes et Télécommunications (LEAT), University of Nice Sophia Antipolis, on 28-29 August 2017.
July 2017 [Invited Talk]
The COEL ERA-Chair holder, Muhammad Mahtab Alam, gave an invited talk titled "Wearable Wireless Networks – From Theory to Practice" at IEEE COMSOC Summer School, 11-14 July 2017, Lahore, Pakistan. Some photos can be found here.
July 2017 [ERA-Chair Team]
We are pleased to welcome Dr. Hassan Malik as as a postdoc researcher in the COEL team.
May 2017 [Project Management]
The first review meeting took place at Thomas Johann Seebeck Department of Electronics on 8 May 2017.
May 2017 [ERA-Chair Team]
We are pleased to welcome Dr. Muhidul Islam Khan as a postdoc researcher in the COEL team.
March 2017 [Grant]
Our application for exchange of scientists under the Estonian-Taiwanese agreements of scientific cooperation travel grant was approved in November 2016.
March 2017 [ERA-Chair Team]
2 postdoc fellows will soon join the COEL ERA-Chair team.
For reference purposes, the advertisements are available here:
1- Resource-efficient and Reliable Communication in Cognitive Electronics - https://euraxess.ec.europa.eu/jobs/funding/vacant-postdoc-position-under-coel-era-chair-resource-efficient-and-reliable
2- Connectivity-Aware Reliable Networking for Dense Indoor Heterogeneous Cognitive Networks - https://www.euraxess.de/jobs/funding/vacant-postdoc-position-under-coel-era-chair-connectivity-aware-reliable-networking
December 2016 [Grant]
Our application for a Dora Plus 2.2 action has been approved. We expect a guest PhD student to visit us during Spring 2017.
October 2016 [Publication]
The COEL ERA-Chair holder, Muhammad Mahtab Alam, went to present the paper "A Novel Multi-hop Body-to-Body Routing Protocol for Disaster and Emergency Networks", WINCOM 2016, Fez, Morocco, 26-29 October 2016. The paper is co-authored with Dhafer Ben Arbia, Rabah Attia, and Elyes Ben Hamida.
October 2016 [Project Management]
The first international steering committee meeting for the COEL ERA-Chair project took place in Thomas Johann Seebeck Department of Electronics on 6-7 October 2016.
September 2016 [Grant]