Proposal Title: NOMA-based Random Access for massive MTC in 5G
By Jinho Choi, Deakin University

Contact: jinho.choi@deakin.edu.au
Key: 1344792123

Abstract: Machine-type communication (MTC) becomes a key element for the Inter- net of Things (IoT) as it enables to support massive IoT connectivity in 5th generation (5G) and future wireless systems. Due to the sparse device activity, uncoordinated transmission schemes (e.g., random access) are con- sidered for most existing MTC schemes in standards. In general, since the performance of MTC is limited by the system bandwidth, a wide system bandwidth is required to support a large number of MTC/IoT devices. To increase the number of MTC/IoT devices with a given system bandwidth, non-orthogonal multiple access (NOMA), which has been extensively studied to improve the spectral efficiency for conventional or human-type communi- cation (HTC), can be applied to MTC. In this tutorial, we demonstrate how the notion of NOMA can be applied to MTC in 5G in order to support a large number of IoT devices. To this end, we present various NOMA-based random access schemes for MTC and explain how they can be designed and analyzed.

Keywords: Machine-Type Communication; IoT; NOMA

Proposed Duration: Half-day (3 hours instruction)

Previous Delivery: N/A

Learning Objectives: 
--Having an overview of the roles of IoT and MTC in 5G and Next Generation wireless systems
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--Understanding NOMA in the context of MTC to allows to develop new transmission schemes for massive MTC
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--Understanding the role of distributed access control schemes in the power domain due to the nature of random access. 
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--Understanding the roles of short block-length codes and game theory playing in NOMA-based random access for MTC  

Syllabus: 
1. Overview of IoT and MTC in 5G and Next Generation Wireless Systems
2. Principles of Random Access for MTC
3. Principles of NOMA in the context of MTC
4. NOMA-basedRandomAccessforMTC:DesignandPerformanceAnalysis
5. Game Theory based Access Control for Massive Connectivity 

Audience: The tutorial intends for the generally knowledgeable individuals working in the fields of wireless communications and networks with some background in probability. The audiences might be the researchers and practitioners who are interested in MTC and application of NOMA.

Novelty: This tutorial mainly focuses on the application of NOMA to MTC rather than human-type communication. In particular, in this tutorial, NOMA is to be reinterpreted in the context of MTC with different performance measures and approaches. Thus, the novelty of the tutorial is about demonstrating how the principles of NOMA can be applied to the design of new transmission schemes for MTC and how the performance can be analyzed/optimized. As a result, in this tutorial, we aim at not only introducing the key approaches to apply NOMA to MTC, but also providing tools to analyze and design them for better performance.

Biography: Jinho Choi was born in Seoul, Korea. He received B.E. (magna cum laude) degree in electronics engineering in 1989 from Sogang University, Seoul, and M.S.E. and Ph.D. degrees in electrical engineering from Korea Advanced Institute of Science and Technology (KAIST) in 1991 and 1994, respectively. He is with the School of Information Technology, Deakin University, Burwood, VIC 3125, Australia, as a Professor. Prior to joining Deakin in 2018, he was with Swansea University, United Kingdom, as a Professor/Chair in Wireless, and Gwangju Institute of Science and Technology (GIST), Korea, as a Professor. His research interests include the Internet of Things (IoT), wireless communications, and statistical signal processing. He authored two books published by Cambridge University Press in 2006 and 2010. Prof. Choi received the 1999 Best Paper Award for Signal Processing from EURASIP, 2009 Best Paper Award from WPMC (Conference), and is Senior Member of IEEE. Currently, he is an Editor of IEEE Trans. Communications and IEEE Wireless Communications Letters and had served as an Associate Editor or Editor of other journals including IEEE Communications Letters, Journal of Communications and Networks (JCN), IEEE Trans. Vehicular Technology, and ETRI journal.

References: 
J. Choi, “NOMA: Principles and recent results,” in 2017 International Symposium on Wireless Communication Systems (ISWCS), pp. 349– 354, Aug 2017.Z. Ding, Y. Liu, J. Choi, M. Elkashlan, C. L. I, and H. V. Poor, “Application of non-orthogonal multiple access in LTE and 5G networks,” IEEE Communications Magazine, vol. 55, pp. 185–191, February 2017.J. Choi, “NOMA based random access with multichannel ALOHA,” IEEE J. Selected Areas in Communications, vol. 35, pp. 2736–2743, Dec 2017.J. Choi, “Layered non-orthogonal random access with SIC and trans- mit diversity for reliable transmissions,” IEEE Trans. Communications, vol. 66, pp. 1262–1272, March 2018.J. Choi, “Multichannel NOMA-ALOHA game with fading,” IEEE Trans. Communications, vol. 66, pp. 4997–5007, Oct 2018.

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