Sunday, May 20

8:30 am-10:15 am W08-S1 NOMA5G: Keynote Session #1
11:00 am-12:30 pm W08-S2 NOMA5G: Technical Session I: Oral Presentation
2:00 pm-3:00 pm W08-S3-I NOMA5G: Technical Session II: Interactive Session
3:00 pm-3:45 pm W08-S4 NOMA5G: Keynote Session #2
4:15 pm-6:00 pm W08-S5 NOMA5G: Technical Session III: Oral Presentation

Sunday, May 20

Sunday, May 20, 08:30 - 10:15

W08-S1 NOMA5G: Keynote Session #1

Room: Empire C

Keynote 1: Non-Orthogonal Random-Access for Massive Connectivity
Prof. Wei Yu (University of Toronto, Canada)

Abstract: In this talk, we examine the role of non-orthogonal multiple-access for a massive device communication scenario in which a large number of devices need to connect to an access-point, but user traffic is sporadic so that at any given time only a subset of users are active. For such a system, user activity detection and channel estimation are key issues. This talk discusses the role of compressed sensing techniques for joint device activity detection and channel estimation and characterizes the detection and data transmission performance of an approximate message passing (AMP) based device identification method. This talk further considers the massive connectivity problem in the massive MIMO regime. We analytically show that massive MIMO can significantly enhance user activity detection, but the non-orthogonality of pilot sequences can nevertheless introduce significant channel estimation error, hence limiting the overall transmission rate. We quantify this effect and characterize the optimal pilot length for massive uncoordinated device access.

Bio: Wei Yu received the B.A.Sc. degree in Computer Engineering and Mathematics from the University of Waterloo, Waterloo, Ontario, Canada in 1997 and M.S. and Ph.D. degrees in Electrical Engineering from Stanford University, Stanford, CA, in 1998 and 2002, respectively. Since 2002, he has been with the Electrical and Computer Engineering Department at the University of Toronto, Toronto, Ontario, Canada, where he is now Professor and holds a Canada Research Chair (Tier 1) in Information Theory and Wireless Communications. Prof. Wei Yu currently serves on the IEEE Information Theory Society Board of Governors. He also serves as the Chair of the Signal Processing for Communications and Networking Technical Committee of the IEEE Signal Processing Society. Prof. Wei Yu received the IEEE Communications Society Best Tutorial Paper Award in 2015 and the IEEE Signal Processing Society Best Paper Award in 2008 and 2017. He is a Fellow of IEEE and a Fellow of Canadian Academy of Engineering.

Keynote 2: NOMA in 5G New Radio (NR) of 3GPP
Dr. Yifei Yuan (ZTE Corporation, China)

Abstract: Recently there has been significant interest in NOMA, not just from academia, but also from the industry. In 3GPP, a NOMA Study Item for 5G NR was approved in March 2017, with the support by 40 companies. Compared to orthogonal multiple access (OMA), NOMA can provide the performance benefit in capacity and the systems' resilience to high traffic load. Grant-free transmission is desirable to be designed together with NOMA, especially for infrequent small data where a terminal can randomly select the time-frequency resources and signatures for transmission at any time. By doing this, more efficient transmission can be achieved in terms of power consumption at the terminals, reduced signaling overhead, and low latency. This talk will describe the general concept and design aspects of grant-free NOMA and candidate schemes or technique components of NOMA that are being studied in 3GPP.

Bio: Yifei Yuan received Bachelor & Master degrees from Tsinghua University of China, and a Ph.D. from Carnegie Mellon University, USA. He was with Alcatel-Lucent from 2000 to 2008, working on 3G/4G key technologies. Since 2008, he has been with ZTE, responsible for standards research on LTE-Advanced and 5G. His research interests include MIMO, channel coding, resource scheduling, non-orthogonal multiple access (NOMA), internet-of-things (IoT). He was admitted to Thousand Talent Plan Program of China. He has extensive publications, including 5 books on LTE-A relay, LTE-Advanced key technologies & system performance, narrow-band IoT, 5G channel coding and 5G ultra-dense networks (UDN), respectively. He has over 50 granted patents. He is the first rapporteur of NOMA study item in 3GPP.

Keynote 3: Mobile Edge Computing and NOMA
Prof. Zhiguo Ding (Lancaster University, U.K.)

Abstract: This talk is to illustrate the coexistence between two important communication techniques, non-orthogonal multiple access (NOMA) and mobile edge computing (MEC). In particular, both NOMA uplink and downlink transmissions are applied to MEC, and analytical results are provided to demonstrate that
the use of NOMA can efficiently reduce the latency and energy consumption of MEC offloading. In addition, various asymptotic studies are also provided to reveal the impact of the users' channel conditions and transmit powers on the performance for the application of NOMA to MEC is quite different to those in conventional NOMA scenarios. Furthermore, joint optimization for power and time allocation to minimize the energy consumption for  NOMA-MEC offloading is also illustrated, by applying geometric program, where simulation results are also provided to demonstrate the superior performance of NOMA-MEC.

Bio: Zhiguo Ding received his B.Eng. in Electrical Engineering from the Beijing University of Posts and Telecommunications in 2000, and the Ph.D. degree in Electrical Engineering from Imperial College London in 2005. From Jul. 2005 to Aug. 2014, he was working in Queen's University Belfast, Imperial College and Newcastle University. Since Sept. 2014, he has been with Lancaster University as a Chair Professor in Signal Processing. From Sept. 2012 to Sept. 2016, he has also been an academic visitor in Princeton University. Dr. Ding's research interests are 5G networks, game theory, cooperative and energy harvesting networks and statistical signal processing. He is serving as an Editor for IEEE Transactions on Communications, IEEE Transactions on Vehicular Technology, IEEE Wireless Communication Letters, IEEE Communication Letters, and Journal of Wireless Communications and Mobile Computing. He received the best paper award in IET Comm. Conf. on Wireless, Mobile and Computing, 2009 and the WCSP 2015, IEEE Communication Letter Exemplary Reviewer 2012, and the EU Marie Curie Fellowship 2012-2014.

Sunday, May 20, 11:00 - 12:30

W08-S2 NOMA5G: Technical Session I: Oral Presentation

Room: Empire C

We will have one or two keynotes in this slot.

Multi-Beam Multiple Access Scheme For Uplink Traffic Of Wireless Virtual Reality with Millimeter-Wave Analog Beamforming

Min Huang (Intel Labs China, P.R. China); JianFeng Wang (Intel Lab China & Intel Corporation, P.R. China); Xu Zhang (Intel Labs China, P.R. China)

Performance of Limited Feedback based NOMA Transmission in mmWave Drone Networks

Nadisanka Rupasinghe, Yavuz Yapıcı and Ismail Güvenç (North Carolina State University, USA)

A Novel Cross-layer Protocol for Random Access in Massive Machine-Type Communications

Qi He (University of Electronic Science and Technology of China, P.R. China); Zhengchuan Chen (Chongqing University, P.R. China); Tony Q. S. Quek (Singapore University of Technology and Design, Singapore); Zhi Chen and Shaoqian Li (University of Electronic Science and Technology of China, P.R. China)

Expectation Propagation-based Active User Detection and Channel Estimation for Massive Machine-Type Communications

Jinyoup Ahn, Byonghyo Shim and Kwang Bok Lee (Seoul National University, Korea)

Performance of Cooperative Underlay CR-NOMA Networks over Nakagami-m Channels

Galymzhan Nauryzbayev (Hamad Bin Khalifa University (HBKU), Qatar & LN Gumilyov Eurasian National University, Kazakhstan); Sultangali Arzykulov (Nazarbayev University, Kazakhstan); Theodoros Tsiftsis (Jinan University, P.R. China); Mohamed M. Abdallah (Hamad Bin Khalifa University (HBKU), Qatar)

Sunday, May 20, 14:00 - 15:00

W08-S3-I NOMA5G: Technical Session II: Interactive Session

Room: Ballroom PreFunction

Papers are presented in interactive formats in the dedicated area

Optimal Power Allocation in Cache-Aided Non-Orthogonal Multiple Access Systems

Doan Nguyen Khai (SUTD, Singapore); Wonjae Shin, Mojtaba Vaezi and H. Vincent Poor (Princeton University, USA); Tony Q. S. Quek (Singapore University of Technology and Design, Singapore)

Performance Tradeoff Between User Fairness and Energy Conservation in Downlink NOMA Systems

Hua Qu, Rui Tang, Jihong Zhao and Zhaoxin Cao (Xi'an Jiaotong University, P.R. China)

Downlink NOMA Transmission for Low-Latency Short-Packet Communications

Xiaofang Sun (Beijing Jiaotong University, P.R. China); Shihao Yan (Macquarie University, Australia); Nan Yang (The Australian National University, Australia); Zhiguo Ding (University of Manchester, United Kingdom (Great Britain)); Chao Shen and Zhangdui Zhong (Beijing Jiaotong University, P.R. China)

Reconfigurable Antenna Multiple Access for 5G mmWave Systems

Mojtaba Ahmadi Almasi and Hani Mehrpouyan (Boise State University, USA); David W Matolak (University of South Carolina, USA); Cunhua Pan (Queen Mary University of London, United Kingdom (Great Britain)); Maged Elkashlan (Queen Mary, University of London, United Kingdom (Great Britain))

Cooperative NOMA in Multi-Content Multimedia Broadcasting

Nazli Ahmad Khan Beigi and Mohammad Reza Soleymani (Concordia University, Canada)

User Pairing Schemes in Cooperative Downlink NOMA System with SWIPT

Yuyu Ma, Hui Gao and Tiejun Lv (Beijing University of Posts and Telecommunications, P.R. China)

Resource Allocation for Energy-Efficient NOMA Network Based on Super-Modular Game

Ruisong Wang and Gongliang Liu (Harbin Institute of Technology, P.R. China); Haijun Zhang (University of Science and Technology Beijing, P.R. China); Wenjing Kang (Harbin Institute of Technology, P.R. China); Theodoros Tsiftsis (Jinan University, P.R. China); Victor C.M. Leung (University of British Columbia, Canada)

Joint Relay and Antenna Selection for Cognitive Radio-Inspired Non-orthogonal Multiple Access

Qian Wang, Jianhua Ge, Qinghai Li and Qifei Bu (Xidian University, P.R. China)

Non-Orthogonal Multiple Access for DF Cognitive Cooperative Radio Networks

Thi My Chinh Chu and Hans-Juergen Zepernick (Blekinge Institute of Technology, Sweden)

Signal-Code Construction Based on Interleaved Reed-Solomon Codes for Multiple Access System over Vector-Disjunctive Channel

Fedor Ivanov (IITP, Russia); Pavel Rybin (IITP RAS & Skoltech, HSE, Russia)

Sunday, May 20, 15:00 - 15:45

W08-S4 NOMA5G: Keynote Session #2

Air-To-Ground NOMA Systems for the "Internet-Above-the-Clouds"

Prof. Lajos Hanzo (University of Southampton, UK)

Room: Empire C

The provision of high-speed Internet access in aircraft is mainly supported by satellite links at the time of writing, aided by links between the aircraft and the ground stations. It is anticipated that Air-To-Ground (A2G) communications between en-route aircraft and the ground stations will have a major role in providing the required Quality of Service, while complying with the low latency requirements of next generation of communications. Non-Orthogonal Multiple Access (NOMA) systems will increase the system throughput by allowing multiple aircraft to simultaneously communicate with the ground station, while requiring fewer resource slots. Due to the limited number of orthogonal resources and the high number of aircraft, interference is expected to be present. In this contribution, we employ beamforming based on the Angle of Arrival (AoA) of the signals and antenna arrays having multiple antenna elements, as well as a novel interference-exploiting Sphere Decoder (iSD), which detects the signals of the supported users, while beneficially exploiting those of the interfering users. We show that an improved performance may be achieved in both Hard-Input Hard-Output (HIHO) scenarios, as well as in iterative Soft-Input Soft-Output (SISO) scenarios, when compared to the conventional Sphere Decoder, the Maximum Likelihood (ML) detector and the Maximum A posteriori Probability (MAP) detector. We also characterize the complexity of the proposed receiver and evaluate its performance with the aid of BER simulations and EXtrinsic Information Transfer (EXIT) charts.

Sunday, May 20, 16:15 - 18:00

W08-S5 NOMA5G: Technical Session III: Oral Presentations

Room: Empire C

Optimization of Power Allocation for Multi-user Superposition Transmission Systems

Ling Jiang, Bing Dong, Zhongwei Si and Kai Niu (Beijing University of Posts and Telecommunications, P.R. China)

On the Performance of Non-Orthogonal Multiple Access Systems with Imperfect Successive Interference Cancellation

Lina Bariah (KUSTAR, United Arab Emirates); Arafat Al-Dweik and Sami Muhaidat (Khalifa University, United Arab Emirates)

Optimization of Finite-length SC-LDPC for uplink NOMA

Shuang Chen, Kewu Peng, Yushu Zhang and Jian Song (Tsinghua University, P.R. China)

Energy-Efficient Power Allocation for Hybrid Multiple Access Systems

Ming Zeng, Animesh Yadav and Octavia A. Dobre (Memorial University, Canada); H. Vincent Poor (Princeton University, USA)

Joint Iterative Detection and Decoding Receiver for Polar Coded SCMA System

Zhipeng Pan and Erbao Li (National University of Defense Technology, P.R. China); Lei Wen (NUDT, P.R. China); Jing Lei and Chaojing Tang (National University of Defense Technology, P.R. China)

An Information-Diversification and Phase-Offset-Precoding Method for Asynchronous Multiuser OFDM Systems

Mohammadsaleh Nikooroo, Soung Chang Liew and Lu Lu (The Chinese University of Hong Kong, Hong Kong)