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SHARED UE-SIDE DISTRIBUTED ANTENNA SYSTEMS (SUDAS)

NGMN Conference, Frankfurt

2015-03-24

Marco Breiling Prof. Robert Schober Fraunhofer Institute for Integrated Circuits (IIS) Institute for Digital Communications Erlangen University Erlangen ©Fraunhofer IIS/Kurt Fuchs

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Shared UE-side Distributed Antenna Systems Target KPI : „10 times to 100 times higher typical user data rate”

Candidate technologies:

ultra-dense networks

massive MIMO

mmWave

Issues:

How to backhaul the very high data rate?

Deployment costs

…

10 Gbps

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Shared UE-side Distributed Antenna Systems State-of-the-Art

The UE has only two built-in antennas This limits the number of parallel spatial streams to TWO

Date rate is limited by limited MIMO capabilities of the UE

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Shared UE-side Distributed Antenna Systems Our approach: Virtual MIMO

A.k.a. Virtual Antenna Arrays, Distributed MIMO, Cooperative MIMO

Basics layed out already in early 2000‘s – mainly for Wireless Sensor Networks Mischa Dohler‘s PhD thesis in 2004 S. Jayaweera: „Energy analysis of MIMO techniques in wireless sensor networks“, 2004 R. Pabst et al. (G. Fettweis): „Relay-based deployment concepts for wireless and mobile broadband radio“, 2004 J. Jiang et al.: „Energy Efficiency and Optimal Power Allocation in Virtual-MIMO Systems, 2012

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Shared UE-side Distributed Antenna Systems (SUDAS) A Perfect Match

Use this for link: Relay Terminal/UE

SUDAS + wide coverage + good outdoor-to indoor penetration + high data rates

SISO in mmWave: + large spectrum available - small coverage - bad out-to-indoor penetration

MIMO in sub-6GHz bands + wide coverage + good out-to-indoor penetration - little spectrum available - only few built-in antennas in UE

Use this for link: BS Relay

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Shared UE-side Distributed Antenna Systems A SUDAS is a Shared Infrastructure

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Shared UE-side Distributed Antenna Systems A SUDAS is a Scattered Infrastructure

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Wi-Fi: centralized infrastructure SUDAS: scattered infrastructure

= SUDAC = relay

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Shared UE-side Distributed Antenna Systems Flexible and gradual deployment

Speedmeter: Gbit/s

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Shared UE-side Distributed Antenna Systems Flexible and gradual deployment

Speedmeter: Gbit/s

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Shared UE-side Distributed Antenna Systems Flexible and gradual deployment

Speedmeter: Gbit/s

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Shared UE-side Distributed Antenna Systems Flexible and gradual deployment

Speedmeter: Gbit/s

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Shared UE-side Distributed Antenna Systems Simulated Capacity

Winner+ outdoor-to-indoor and IEEE 802.11ad „living room“ models

Distance to BS: 100m; UHF frequency: 800 MHz; Bandwidth: 200 MHz

16 antennas at BS, 2 built-in antennas in UE, 14 SUDACs in room

10 Gbit/s appear realistic

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Shared UE-side Distributed Antenna Systems Benefits

Higher data rates than for conventional massive MIMO

Lower cost than for ultra-dense networks

High degree of diversity and high robustness

Transfer of 5G CAPEX and OPEX from MNO to end user

End user can install infrastructure parts according to his data rate needs

No regulatory issues about using the mmWave band for 5G

Could be used in further scenarios: automotive, train, street lamps, …

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Specify the air interface for controlling the relays by the UEs (should be standardized in 5G)

Our previous concept work shows advantages for Compress-and-Forward relaying over Amplify-and-Forward

A non-5G standard like IEEE 802.11ad for the mmWave link is an option, but could yield inferior performance or higher cost

Measure the capacity of this relayed MIMO channel: Link budget at typical relay positions? Condition of the H-matrix?

Estimate the end-user price of a relay: Acceptable to the market?

Demonstrate the concept!

Shared UE-side Distributed Antenna Systems Challenges

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Shared UE-side Distributed Antenna Systems Contact

Marco Breiling Chief Scientist Tel.: +49 9131 776-6325 E-Mail: marco.breiling@iis.fraunhofer.de Internet: www.iis.fraunhofer.de/sudas

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Shared UE-side Distributed Antenna Systems (SUDAS)Shared UE-side Distributed Antenna Systems �Target KPI : „10 times to 100 times higher typical user data rate” Foliennummer 3Shared UE-side Distributed Antenna Systems �Our approach: Virtual MIMOShared UE-side Distributed Antenna Systems (SUDAS) �A Perfect MatchShared UE-side Distributed Antenna Systems �A SUDAS is a Shared InfrastructureShared UE-side Distributed Antenna Systems �A SUDAS is a Scattered InfrastructureShared UE-side Distributed Antenna Systems �Flexible and gradual deploymentShared UE-side Distributed Antenna Systems �Flexible and gradual deploymentShared UE-side Distributed Antenna Systems �Flexible and gradual deploymentShared UE-side Distributed Antenna Systems �Flexible and gradual deploymentShared UE-side Distributed Antenna Systems �Simulated CapacityShared UE-side Distributed Antenna Systems �BenefitsFoliennummer 14Shared UE-side Distributed Antenna Systems �Contact