WPCN is an emerging technology which will eliminate the need for frequent manual battery replacement in wireless communication

1. WIRELESS POWERED
COMMUNICATION
NETWORK
Presented by,
Rasitha V
Roll No.:44
S7 A
Guide Name : Anuja Mathew

2. OVERVIEW
• Wireless Communication
• Wireless Power Transfer Technology
• Wireless Powered Communication Network
• Advantage
• Basic Models
• Challenges Faced by WPCN
• Key Technique
• Conclusion
• Future Scope
College of Engineering Chenganrnur
3

3. WIRELESS COMMUNICATION
 Transmission of information/
power through air
College of Engineering Chenganrnur 4

4.  Nikola Tesla in 1890s
 Wireless power transfer
technology(WPT)
WIRELESS POWER TRANSFER
College of Engineering Chenganrnur
4

5.  Transmission using MWs
 Effectively transfer tens of microwatts of
energy
 Transmission range more than 10(meters)²
WIRELESS POWER
TRANSFER TECHNOLOGY
College of Engineering Chenganrnur
5

6.  Integration of WPT and Wireless
communication
 Cutting last wire
 Powered by wireless transmitter
 Energy harvesting
WIRELESS POWERED COMMUNICATION
NERWORK
College of Engineering Chenganrnur
6

7. EH BASED APPROACHES WPCN
• Renewable energy  Radio signals
• Unstable  Stable
College of Engineering Chenganrnur
7

8. ADVANTAGES
College of Engineering Chenganrnur
9

9. BASIC MODELS
 Energy Nodes
 Access Points
 EN’s & AP can be located :
* in individual
* in groups
College of Engineering Chenganrnur
9

10.  Hybrid access point(HAP)
BASIC MODEL CONTINUE……
College of Engineering Chenganrnur
11

11. HYBRID ACCESS POINT
 Makes coordination of information & energy
easier
 Helps save production & operation
College of Engineering Chenganrnur
20

12. DOUBLY-NEAR-FAR PROBLEM
Unfair user performance
 smaller throughput
College of Engineering Chenganrnur
12

13. Use separate EN & AP
SOLUTION
College of Engineering Chenganrnur
13

14. Out-of band Transmission
 Transfer information & energy on different
frequency bands
 Avoid interference
College of Engineering Chenganrnur
14

15.  Information & energy transmitted over the same
band
 Enhance the spectrum efficiency
 Co-channel interference
 Separate energy & information transmission
In-Band Transmission
College of Engineering Chenganrnur
15

16.  Solution for an in-band approach
 Able to transmit energy & receive information
simultaneously
 Self-interference
FULL DUPLEX HYBRID ACCESS
POINT
College of Engineering Chenganrnur
16

17. CHALLENGES FACED BY WPCN
Low efficiency & short range of WPT
Limited recourses for energy & information
transmissions.
College of Engineering Chenganrnur
17

18. KEY TECHNIQUES
Energy beam forming
Joint Communication & Energy Scheduling
Wireless Powered Cooperative Communication
Multi-node Communication
College of Engineering Chenganrnur
18

19.  Focus the energy in narrow
energy beam
 More flexible & efficient
wireless energy to ER’s
ENERGY BEAMFORMING
College of Engineering Chenganrnur
19

20.  Energy transfer based on energy
demand
 Information transmission
constrained by the amount of
energy available
JOINT COMMUNICATION &
ENERGY SCHEDULING
College of Engineering Chenganrnur
20

21. WIRELESS POWERED COOPERATIVE
COMMUNICATION
 sharing of resources
 Peer to peer energy
cooperation
College of Engineering Chenganrnur
21

22. D2D + multiple EN & AP
Energy & information
transmission on same frequency
band
No interference
MULTI-NODE COOPERATION
College of Engineering Chenganrnur
22

23. CONCLUSIONS
 Wireless power transfer
 Over view of basic models of WPCN
 Performance enhancing technique
College of Engineering Chenganrnur
23

24. FUTURE SCOPE
 Joint communication/energy scheduling
design without the need to allocate
time/frequency
 Multi user WPCN
College of Engineering Chenganrnur
24

25. 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
College of Engineering Chenganrnur
25

26. College of Engineering Chenganrnur 26