5 g communications
TRANSCRIPT
The Future of 5GCommunicationschallenging and promising
Mohamed SeifWireless Intelligent Network Center, Nile University
April 12, 2016
Motivation
Policy
• Please stop me if I go over thetime limit.• Please stop me if I talk too fast.• Please stop me if you have anyquestion.
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Usage Trends: 2005-2015
Applications are Hungry
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Cooper's Law: Promising Foresight
”Capacity has doubled every 2.5 years for thepast 100 years”
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WhymmWave?
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• Huge amount of spectrum available inmmWave bands.• Technology advances make mmWavepossible.
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SpectrumChart: Sub 6GHz Crowded
mmWave is Huge ©8
mmWave Applications
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mmWave Applications (cont'd)
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mmWave Applications (cont'd)
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mmWave Applications (cont'd)
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mmWave Applications (cont'd)
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2020: The Future ofWireless Communications
Dense14
2020: The Future
Heterogeneous15
Link Budget Analysis
Problem!
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Link Budget Analysis
Problem!16
Blockage in mmWave
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Solution
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MIMO in Brief
MIMO provides more capacity, reliability,and resilience to interference.
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MIMO inmmWave
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Proposed Architectures in 5G
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Channel Feedback for Digital Beamforming
Depends on the knowledge of channelaccurately and instantaneously
Not always affordable!
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Channel Feedback for Digital Beamforming
Depends on the knowledge of channelaccurately and instantaneously
Not always affordable!
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Analogor Directional Beamforming
Limited by the angle of resolution24
Sub 6GHz vs mmWave
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Power Consumption
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Power Consumption (cont'd)
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Power Efficient Precoding Methods
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Power Efficient Precoding Methods (cont'd)
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Challenges
Data Traffic
Figure: Data Traffic Forecast by CISCO VNI
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Interference Barrier inWireless
Figure: Interference in Heterogeneous Networks
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SpectrumUtility
PredictionOur behavioral patterns are up to 93%
predictable - Google Instants
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SpectrumUtility
PredictionOur behavioral patterns are up to 93%
predictable - Google Instants33
Research Thrusts -- Big Picture
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Fundamental limit
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Research Leaders in 5G
Prof. Robert Heath UT Austin
Prof. Jeffery Andrews UT Austin
Prof. Giuseppe Caire USC
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Thank You!
Questions?38