New developments in multiple access schemes

Brought to you by The Radio Technology Group

Multiple access schemes are essential for any communication method that shares common channels. Speakers will review the background of multiple access schemes and explain the potential advantages of new developments.

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About the event

Early telephone systems relied on human operators to switch calls to trunk lines. Modern digital systems rely on a wide range of techniques that control access in wired and wireless systems, including LANs and four generations of public mobile radio systems.
The quest for ever greater efficiency in spectrum use, increased capacity and reduction in latency is driving the investigation of novel non-orthogonal systems for 5G, such as PD-NOMA, SCMA, PDMA, LPMA, and MUSA.

Limited FREE places for non-members: We are keen to engage with, and foster the next generation of technologists and engineers - we have limited FREE places for non-members who are under 35. If you are interested in registering for one of these places please email

You can follow @CambWireless on Twitter and tweet about this event using #CWRadioTech.


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The information supplied below may be subject to change before the event.


Registration and networking with lunch


Introduction to Radio Technology SIG from Mark Beach, University of Bristol


'Radio resource management'

Michael Fitch, Chief of Wireless Research, BT
The benefits of dynamic allocation of radio resource are examined.




‘Massive MIMO a key enabler for sub-6GHz wireless connectivity’

Mark Beach, University of Bristol
This talk will describe the operation of sub-6GHz massive MIMO and how the ‘Marzetta’ based architecture differs to SDMA baseband beamforming. A brief description of the NI based Bristol Massive MIMO system with be given alongside an overview of field trials and results obtained to date. The talk will conclude by proposing a list of open research questions in the field.




‘Multi-RAT convergence – A new spin through the Edge!’

Alain Mourad, Senior Manager, Interdigital
The talk will discuss a new spin to Multi-RAT convergence brought by the recent paradigm of Edge (including Fog) networking and computing. This new spin is being addressed in the European-Taiwan 5G-CORAL project launched in September 2017. The concept and architecture of 5G-CORAL will be presented.




Refreshments and networking


'Low Power Wide Area Networks: Simple Access Technologies to Create the Big Data'

Juan Nogueira, Director of the Center of Excellence for Wireless and Connectivity, Flex
Big Data is not only becoming important because of the large amount of collected data, but also because of the large amount of data sources that contribute to it and that enables to run data analytics on them to extract the valuable information hidden behind them. Many of these sources are low cost and remote Things, providing unfrequently small amounts of data. However, research and development in wireless technologies in the last decades have been focused in improving spectral efficiency by increasing modulation complexity, spatial diversity, etc., to come as close as possible to the Shannon limit. These technologies are oversized for the connectivity needs of these Things and too expensive for a positive return of the required investment. To fill this gap, new wireless access solutions based in old RF technologies, commonly known as Low Power Wide Area Networks (LPWAN), were developed in the last 4 years to provide the four “L” these Things were demanding: Low data rate, Long range, Low power consumption and Low cost. This talk will review the most adopted LPWAN technologies, namely LoRa, SigFox Ingenu and NB_IoT, both from RF and market perspectives.




‘Physical Layer Approaches for Enabling Extreme Resource Sharing in Future Wireless Communication ..

Dr Konstantinos Nikitopoulos, Lecturer (Assistant Prof), Signal Processing for Wireless Communications, 5GIC, The University of Surrey
There is a current paradigm shift from orthogonal to non-orthogonal signal transmissions that enables extreme sharing of the available resources, but it requires processing complexities far beyond the capabilities of traditional processors and heavy signalling requirements that can substantially reduce transmission efficiency. In this context, we show how new massively parallel detection/precoding approaches can overcome the current processing speed barriers. We also discuss how new physical layer approaches like super-modulation can efficiently enable asynchronous joint medium access and rateless data transmission, and substantially reduce the signalling overhead.




Panel session with all speakers

Chaired by SIG Champion, Mark Beach, University of Bristol


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Michael Fitch

Michael Fitch works in BT Research and Innovation, providing technical leadership to a small research team specialising in physical and systems aspects of wireless communications. He is currently working on a number of projects on emerging wireless technologies such as mm-wave, spectrum sharing and 5G. In addition he provides engineering consultancy to other parts of BT on wireless topics. Previous experience is with modelling and engineering of fixed and mobile links over satellite, cellular and point to multipoint systems. Michael holds a first degree in maths and physics, a PhD in satellite communications, is a visiting Professor of communications at the University of Strathclyde, and is a member of the IET.

Ping-Heng (Wallace) Kuo

Ping-Heng (Wallace) Kuo is a staff engineer at InterDigital Europe, London, UK, focusing on pre-standard research of 5G radio access network technologies. He is currently involved in the European 5G-PPP 5G-Crosshaul and 5G-CORAL project, and additional collaborative projects in the UK researching radio access technologies for 5G and beyond. Prior to joining InterDigital in 2016, he has been a wireless communications technologies research engineer and a 3GPP RAN1 delegate at Industrial Technology Research Institute (ITRI) in Taiwan for 7 years. Ping-Heng also held a visiting scholar position at Harvard University in 2014, and he has served as an editor of Industry Perspectives Column for IEEE Wireless Communications Magazine in 2015. He received his Ph. D. from University of Canterbury, New Zealand, and conducted an internship at Samsung Advanced Institute of Technology (SAIT) in Korea.

Konstantinos Nikitopoulos - Lecturer (Assistant Prof.), Signal Processing for Wireless Communications, University of Surrey (ICS)

Dr. Nikitopoulos is a Lecturer (Assistant Professor) with the Institute for Communication Systems, Electrical and Electronic Engineering Department, University of Surrey, Guildford, U.K. His recent research interests lie in the filed of signal processing for wireless communication systems, with an emphasis in advanced transceiver design, in signal processing techniques for large MIMO systems and in massive parallel processing. He is a member of the 5G Innovation Centre, and he is leading the “Proof-of-Concept and mmWave Solutions” work area. Before joining the University of Surrey, he has held research positions with the Institute for Communication Technologies and Embedded Systems, RWTH Aachen University, with the California Institute for Telecommunications and Information Technology, University of California at Irvine, Irvine, and with the Computer Science Department, University College London. He has also been a consultant for the Hellenic General Secretariat for Research and Technology, where he also served as a National Delegate of Greece to the Joint Board on Communication Satellite Programs of European Space Agency. Dr Nikitopoulos is a recipient of the prestigious First Grant of the U.K.’s Engineering and Physical Sciences Research Council.

Juan Nogueira - Director of the Center of Excellence for Wireless and Connectivity, Flex

Dr. Nogueira is director of the Center of Excellence for Wireless and Connectivity at Flex. In this role he is defining technology roadmaps, evaluating new innovative solutions, establishing strategic collaborations with partner companies and leading internal research programs in the field of wireless communication in general and Internet of Things in particular. Prior to working at Flex, he was Lead System Architect of advance development and system architecture first at Robert Bosch GmbH and then at Bosch Connected Devices and Solutions GmbH (BCDS) in Reutlingen (Germany). In this position he defined the connectivity technology roadmap that later concluded with the foundation of BCDS as the Bosch subsidiary focused in connectivity and IoT. Before that, he worked in corporate R&D for wireless communication and sensing systems at Sony Corporation in Stuttgart (Germany) where he held the positions of Senior System Engineer and Principal Engineer. Dr. Juan Nogueira holds a PhD in Telecommunications Engineering from the University of Vigo (Spain). He subsequently became an associated professor at the University of Vigo in the Electronic Technology Department, collaborating with industry on projects in the area of industrial field buses. He has written numerous articles and holds 20+ patents in the area of communication protocols and wireless sensor networks.

SIG Champions

Mark Beach - Professor of Radio Systems Engineering, University of Bristol (Communication Systems & Networks Research Group)

Mark Beach received his PhD for research addressing the application of Smart Antenna techniques to GPS from the University of Bristol in 1989, where he subsequently joined as a member of academic staff. He was promoted to Senior Lecturer in 1996, Reader in 1998 and Professor in 2003. He was Head of the Department of Electrical & Electronic Engineering from 2006 to 2010, then spearheaded Bristol’s hosting of the EPSRC Centre for Doctoral Training (CDT) in Communications. He is the Co-Director of this centre. He leads research in the field of enabling technologies for the delivery of 5G and beyond wireless connectivity; which includes the recent award of an EPSRC Prosperity Partnership in the field of Secure Wireless Agile Networks (SWAN). Mark’s current research activities are delivered through the Communication Systems and Networks Group, forming a key component within Bristol’s Smart Internet Lab. He has over 30 years of physical layer wireless research embracing the application of Spread Spectrum technology for cellular systems, adaptive or smart antenna for capacity and range extension in wireless networks, MIMO aided connectivity for through-put enhancement, experimental evaluation and optimization of Massive MIMO, Millimetre Wave technologies as well as flexible RF technologies for SDR modems. With a strong industrially focused research portfolio, he is also the School Research Impact Director.

Brian Collins - Managing Consultant, BSC Associates

Brian has designed antennas for applications including radio and TV broadcasting, base stations, handsets and consumer products, and has operated his own consultancy firm for the last 12 years. He has published more than 70 papers on antenna topics and contributed chapters to several recent textbooks. He operates a small consultancy company, chairs the Antenna Interface Standards Group and is an Honorary Visiting Professor in the School of Electronic Engineering and Computer Science at Queen Mary, University of London.

Paul Harris - Principal Wireless Architect, VIAVI Solutions

Paul is a wireless technology expert with experience across a range of areas including research, design, implementation and standardisation. He received his PhD from the University of Bristol for evaluating the performance of massive MIMO technology in the lead-up to 5G and is currently a Principal Wireless Architect within the CTO Office at VIAVI Solutions providing thought leadership on new and emerging technologies for 5G, 6G and beyond. In line with this he represents VIAVI within a range of bodies and fora including 3GPP, the O-RAN Alliance, ETSI, the Next G Alliance, the 6G-IA and the UKTIN. His experience prior to joining VIAVI includes representing Vodafone within 3GPP for radio performance aspects, contributing to the development of massive MIMO channel estimation solutions at Cohere Technologies, and working with customers as a domain expert at National Instruments to establish effective research solutions using software-defined radio. He is also a Chartered Engineer, Senior Member of the IEEE, Fellow of the ITP, and an Honorary Industrial Fellow at the University of Bristol.

Peter Kibutu - 5G NTN Market lead, TTP plc

Peter has been working in the cellular industry for over 15 years, specialising in modem system architecture and physical layer development. Before joining TTP, Peter worked in the development of 2G/3G/4G wireless modem products and small-cell base station projects for a number of leading cellular equipment vendors. At TTP Peter has worked with a wide range of clients in the satellite and cellular communication domains, specialising in end-to-end system engineering, modem system development and advising on commercial aspects. Currently Peter is the TTP technical lead for 5G/6G activities and represents the company in range of industry bodies including 3GPP and UKTIN.

Peter Topham - Principal Engineer, Qualcomm Technologies International

Peter has more than 30 years experience of RF and high-speed circuit design, taking chips into production ranging from FM Band II through cellular, Bluetooth and on to UWB at 10GHz. He has been with Qualcomm for 7 years, specialising in low-power RF design for portable and wearable products.

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Old Hall, Girton College, Huntingdon Road, Cambridge, CB3 0JG

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