Towards 5G HetNets: Speaker Introduction Jeffrey G. Andrews - - PowerPoint PPT Presentation

Towards 5G HetNets: Speaker Introduction

Jeffrey G. Andrews

Wireless Networking and Communications Group (WNCG)

• Dept. of Electrical and Computer Engineering

The University of Texas at Austin IEEE Comm. Theory Workshop Curacao May 2014

5G and 10,000x the bps/Hz/km2: where will the gains come from?

Bandwidth (20x more Hz) Only one place to go: mmWave (Also LTE-U as stopgap) Spectral efficiency (10x more bps/Hz) More dimensions (massive MIMO) Interference suppression? Effective Density (50x More Loaded BSs/km2): Efficient HetNets, small cell and WiFi offloading, maybe D2D 4G

5G

mmWave + HetNets

• very complementary
• densifying mmWave cells

yields huge gains (SNR plus cell splitting)

• Can possibly do self-

backhauling!

mmWave + massive MIMO

• Some competition here
• Improved SINR via

mmWave with high gain antennas, interference goes to zero?

HetNets + massive MIMO

• HetNets may not be able to

utilize massive MIMO

• Cost a key challenge here

Your Speakers

• Ted Rappaport (NYU)
• The Messiah of millimeter Wave
• “Millimeter Wave Cellular Communications: Channel Models, Capacity

Limits, Challenges and Opportunities”

• Two senior 3GPP contributors and inventors
• That is, two of the guys who will actually design the 5G air interface
• Preben Mogensen (NSN and Aalborg University)
• “Looking Ahead to 5G: Building a Virtual Zero-Latency Gigabit Experience”
• Erik Dahlman (Ericsson Research)
• “Radio Access of the Future: Where to Go?”
• Martin Haenggi (University of Notre Dame)
• Top theoretician on stochastic geometry applied to wireless networks
• “5G: The Quest for Cell-Less Cellular Networks”
• Gerhard Fettweis (Vodafone Chair, TU Dresden)
• 5G keynote last year’s CTW on “Tactile Internet”, this year will talk about

a key challenge behind densification

• “HetNet Wireless Fronthaul: The Challenge Missed”