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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