wireless powered communication network
TRANSCRIPT
WIRELESS POWERED COMMUNICATION
NETWORKPresented by,
Rasitha VRoll No.:44
S7 A
Guide Name : Anuja Mathew
OVERVIEW• Wireless Communication• Wireless Power Transfer Technology• Wireless Powered Communication Network• Advantage• Basic Models• Challenges Faced by WPCN• Key Technique• Conclusion• Future Scope
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WIRELESS COMMUNICATION
Transmission of information/ power through air
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Nikola Tesla in 1890s Wireless power transfer
technology(WPT)
WIRELESS POWER TRANSFER
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Transmission using MWs Effectively transfer tens of microwatts of
energy Transmission range more than
10(meters)²
WIRELESS POWER TRANSFER
TECHNOLOGY
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Integration of WPT and Wireless communication
Cutting last wirePowered by wireless
transmitterEnergy harvesting
WIRELESS POWERED COMMUNICATION NERWORK
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EH BASED APPROACHES
WPCN
• Renewable energy Radio signals
• Unstable Stable
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ADVANTAGES
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BASIC MODELS
Energy Nodes Access Points EN’s & AP can be located : * in individual * in groups
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Hybrid access point(HAP)
BASIC MODEL CONTINUE……
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HYBRID ACCESS POINT
Makes coordination of information & energy easier
Helps save production & operation
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DOUBLY-NEAR-FAR PROBLEM
Unfair user performance smaller throughput
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Use separate EN & AP
SOLUTION
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Out-of band Transmission
Transfer information & energy on different frequency bands
Avoid interference
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Information & energy transmitted over the same band
Enhance the spectrum efficiency Co-channel interference Separate energy & information transmission
In-Band Transmission
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Solution for an in-band approach Able to transmit energy & receive information
simultaneously Self-interference
FULL DUPLEX HYBRID ACCESS POINT
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CHALLENGES FACED BY WPCN
Low efficiency & short range of WPTLimited recourses for energy & information
transmissions.
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KEY TECHNIQUESEnergy beam formingJoint Communication & Energy SchedulingWireless Powered Cooperative
CommunicationMulti-node Communication
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Focus the energy in narrow energy beam
More flexible & efficient wireless energy to ER’s
ENERGY BEAMFORMING
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Energy transfer based on energy demand
Information transmission constrained by the amount of energy available
JOINT COMMUNICATION & ENERGY SCHEDULING
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WIRELESS POWERED COOPERATIVE COMMUNICATION
sharing of resources Peer to peer energy cooperation
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D2D + multiple EN & APEnergy & information
transmission on same frequency band
No interference
MULTI-NODE COOPERATION
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CONCLUSIONS Wireless power transfer Over view of basic models of WPCN Performance enhancing technique
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FUTURE SCOPE Joint communication/energy scheduling
design without the need to allocate time/frequency
Multi user WPCN
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REFERENCE[1] S.Bi,C.K.Ho and R.Zhang, “Wireless Powered Communication and Challenges”,IEEE Commun.Mag.vol.53.no.4,Apr.2015,pp 17-25
[2] Kaibin Huang,Caijun Zhong and guangxu Zhu, “Some New Research Trends in Wireless Powered Communication”,IEEE Commun.Mag
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THANK YOU
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