The 21st Asia-Pacific Conference on Communications

October 14-16, 2015
Kyoto University, Kyoto, Japan

Wireless Innovation Industry Workshop

-Recent Advances and Challenges in 5G Technology-

11:20-18:00 Wed. 14 Oct. 2015

Organized by Dr. Yucel Ugurlu, Dr. Takao Inoue and Michiharu Kubo

Registration for this workshop is free of charge and includes lunch, however we ask that you register in advance to guarantee a seat and to allow us to prepare for lunch.

Registration for this workshop DOES NOT allow access to APCC2015 sessions and DOES NOT include APCC2015 proceedings or social events.

Online registration is now open on the EDAS site.

5G research activity has rapidly increased over the past year with numerous new technology proposals such as massive MIMO, new waveforms, network improvement strategies, full duplex, and the use of broad bandwidths available in mm-wave spectrum. This full day 5G roundtable brings together leading 5G wireless communications researchers from around the world to facilitate presentations on current trends and technical discussions. These discussions include topics in current views of 5G technologies and state-of-the-art results in taking theory to real-world prototypes and trials. This technical workshop is intended as an industry session to cover both academic researches as well as practical and industrial implementations of the 5G technology.

Chair: Dr. Yucel Ugurlu, National Instruments Japan

Dr. Yucel Ugurlu, National Instruments Japan
Keynote - 5G Research - From Theory to Practice
James Kimery, Director of RF/SDR, National Instruments, USA
Abstract: 5G is an exciting research area paving the way for faster, more responsive mobile access networks with increased capacity. New and innovative approaches to solve these challenges include mmWave frequencies, densification, new mobile access technologies/waveforms and Massive MIMO. To expedite the transition of these new technologies from concept to commercialization and adoption requires a platform approach. This talk will overview some of the latest candidate 5G technologies, their progress and their potential to address the 5G needs.
Full Duplex - Dream or Reality?
Prof. Chan-Byoung Chae, Yonsei University, South Korea
Abstract: Scarcity of available spectrum is a fundamental limit that we face today in achieving substantial network capacity improvement. In theory, full-duplex schemes should help double, or get closer to doubling, the network capacity by doubling the use of a given spectrum. Full duplex techniques have been successful in wired environments but the practicality in wireless scenario has been an open question. In this talk, we present recent trends in full-duplex communication strategies and show state-of-the-art full duplex techniques.
Low-Cost Massive MIMO: From Theory to Practice
Prof. Shi Jin, Southeast University, China
Abstract: 5G mobile communication puts forward higher request to the wireless transmission rate, spectrum efficiency and power efficiency. Massive MIMO wireless communication in cellular networks can deeply exploit the spatial dimension wireless resources and thereby significantly improve frequency efficiency and power efficiency of wireless communications. In recent years, there has been substantial theoretical progress. However there exist challenging problems in both fundamental theory and key technique to be investigated. In this talk, we systematically investigate low-cost massive MIMO wireless communication in cellular networks by considering many important aspects which include hardware cost, power consumption, and computational complexity. We will firstly review the basic massive MIMO characteristics and clarify some fundamental limits that prevent the realization of this technology in practice. Then the framework of low-cost massive MIMO will be described based on our recent research findings. This talk will also introduce key components of low-cost massive MIMO which include hybrid precoding schemes, quantized OFDM, and low resolution receiver. We aim to make clear the new features of low-cost massive MIMO channels, and overcome the bottleneck problem for channel information acquisition, complexity problem for system implementation. In addition, we will also consider some key problems in low-cost massive MIMO systems with hardware imperfections. Performance limits and optimization will be investigated for this system in this talk.
Lunch Break
Radio access technologies towards the fifth generation mobile communications system
-Research activities of The Fifth Generation Mobile Communication Promotion Forum-
Takaharu Nakamura, Fujitsu, Japan
Abstract: Study activities of radio access network technologies towards the fifth generation mobile communications system being studied in the Fifth Generation Mobile Communications Promotion Forum are summarized and reported.
Afternoon Break
MAC/PHY Protocol Stack Prototyping for Cellular and WLAN Systems
Dr. Amal Ekbal, National Instruments, USA
Abstract: As we move towards 5G systems, an important portion of the performance improvements will come from network level and cross-layer optimizations and techniques such as hyper dense heterogeneous networks, cellular/WLAN aggregation, opportunistic sharing of spectrum etc. However, prototyping multiple layers of the cellular or WLAN stack is usually complex due to the lack of a common software and hardware paradigm. In this talk, we show tools developed by NI to simplify the implementation of such real-time testbeds using the common design language provided by LabVIEW Communications System Design Suite and NI SDR hardware platforms. We will show the NI 802.11 and LTE application frameworks which provide easily modifiable modular open codebases in LabVIEW that makes real-time prototyping within the grasp of the wider wireless research community. In addition, we will show how users can interface popular upper layer codebases such as the ns-3 network simulator with the LabVIEW-based application frameworks to rapidly create advanced real-time testbeds and validate their research ideas.
Coming of age? mmWave and PHY research to prototype
Dr. Takao Inoue, National Instruments, USA
Abstract: mm-wave communication area has long attracted researchers for the available wide bandwidths to enable ultra fast video streaming and communications. While various technologies have emerged over the years such as IEEE 802.11ad, it has not seen a full market fruitarian. Meanwhile, OFDM has revolutionized physical layer designs for WiMAX and LTE. In this talk, we look at past and present trends in mm-wave communications research and look at how 5G is pushing the mmWave and physical layer/waveform designs for the next generation of communication systems.
Massive MIMO - From theory to testbeds
Dr. Karl Nieman, National Instruments, USA
Abstract: Massive multiple-input multiple-output (MIMO) is one of the main candidates to be included in the fifth generation (5G) cellular systems. Compared to conventional MIMO, potential benefits brought by the extra basestation antennas include gains in radiated energy efficiency, relaxation of specifications for individual RF chains, simplification of the multiple-access layer, all of this with reduced complexity at the user device. To take the next steps in the development and verification of its potential, it is necessary to have proof-of-concept platforms, i.e. testbeds, where Massive MIMO can operate under real-life conditions.
With the help of its industrial and academic lead users, National Instruments has developed a real-time Massive MIMO Application Framework, a hardware and software solution that supports real-time MIMO processing of up to 128 RF chains over 20 MHz of bandwidth. In this talk, I detail inner workings of this framework, share current and future features, and conclude with user success stories.