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The document presents a comparative analysis of different cooperative communication protocols. It introduces cooperative communication and discusses three protocols: Amplify and Forward, Decode and Forward, and Coded Cooperation. It describes the mechanisms of each protocol and presents simulation results showing that Coded Cooperation performs better than the other two protocols. Future work is identified to implement Coded Cooperation with OFDM and error correcting codes to improve effectiveness.

“COMPARATIVE ANALYSIS OF
DIFFERENT TYPES OF CO-
OPERATIVE COMMUNICATION
PROTOCOLS”
Rakhshanda Rukham
Student ID :1102081
Mehnaz Binte Zia
Student ID :1002052
Farhana Matin
Student ID : 1102075

Content
• Introduction of Co-operative
Communication
• Co-operative communication protocols
• Result
• Conclusion
• Future work

Introduction of Co-operative
Communication
In co-operative wireless
communication, we are
concerned with a wireless
network, of the cellular or ad
hoc variety, where the
wireless agents , which we
call users, may increase their
effective quality of service
(measured at the physical
layer by bit error rates, block
error rates, or outage
probability) via co-operation

Co-operative communication
protocols
• Amplify and Forward (AAF)
• Decode and Forward (DAF)
• Coded Co-operation (CC)

Amplify and Forward (AAF)
Each user in this method
receives a noisy version of
the signal transmitted by its
partner . As the name
implies, the user then
amplified and retransmit the
noisy signal.

Decode and Forward (DAF)
The decode-and-forward
relay protocol is a protocol
defined for wireless co-
operative communications. In
Decode and forward a user
attempts to decode the
partner's symbol then
retransmit the decode
symbols.

Coded Co-operation (CC)
The basic idea behind
coded co-operation is
that each user tries to
transmit incremental
redundancy for its
partner. Whenever that
is not possible, the
users automatically
revert back to a non-
cooperative mode

Combining Techniques And
Modulation Schemes
Combining Techniques Modulation Schemes
1. Fixed Ratio Combining (FRC)
2. Equal Ratio Combining (ERC)
3. Signal to Noise Ratio Combining (SNRC)
4. Enhanced Signal to Noise Ratio
Combining (ESNRC)
1. BPSK(For Single Link Transmission)
2. QPSK(For Multi-hop Transmission

Amplify and Forward (AAF)
Single Relay Double Relay

Decode and Forward (DAF)
Single Relay Double Relay

Future Work
• We will implement Coded Co-operation in
OFDM and get better result .
• In RCPC codes & Turbo codes we can
use Coded Co-operation.
• In’s our future work to make it more
effective.

Conclusion
As stated at the field of
• high-data-rate,
• efficient and reliable wireless communication
Coded Co-operative Communication
is better over Amplify & Forward and
Decode & Forward

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Welcome To Our Presentation

1. Welcome To Our Presentation

2. “COMPARATIVE ANALYSIS OF DIFFERENT TYPES OF CO- OPERATIVE COMMUNICATION PROTOCOLS” Rakhshanda Rukham Student ID :1102081 Mehnaz Binte Zia Student ID :1002052 Farhana Matin Student ID : 1102075

3. Content • Introduction of Co-operative Communication • Co-operative communication protocols • Result • Conclusion • Future work

4. Introduction of Co-operative Communication In co-operative wireless communication, we are concerned with a wireless network, of the cellular or ad hoc variety, where the wireless agents , which we call users, may increase their effective quality of service (measured at the physical layer by bit error rates, block error rates, or outage probability) via co-operation

5. Co-operative communication protocols • Amplify and Forward (AAF) • Decode and Forward (DAF) • Coded Co-operation (CC)

6. Amplify and Forward (AAF) Each user in this method receives a noisy version of the signal transmitted by its partner . As the name implies, the user then amplified and retransmit the noisy signal.

7. Decode and Forward (DAF) The decode-and-forward relay protocol is a protocol defined for wireless cooperative communications. In Decode and forward a user attempts to decode the partner's symbol then retransmit the decode symbols.

8. Coded Co-operation (CC) The basic idea behind coded co-operation is that each user tries to transmit incremental redundancy for its partner. Whenever that is not possible, the users automatically revert back to a non- cooperative mode

9. Combining Techniques And Modulation Schemes Combining Techniques Modulation Schemes 1. Fixed Ratio Combining (FRC) 2. Equal Ratio Combining (ERC) 3. Signal to Noise Ratio Combining (SNRC) 4. Enhanced Signal to Noise Ratio Combining (ESNRC) 1. BPSK(For Single Link Transmission) 2. QPSK(For Multi-hop Transmission

10. Simulation And Result

11. Amplify and Forward (AAF) Single Relay Double Relay

12. Decode and Forward (DAF) Single Relay Double Relay

13. Coded Co-operation (CC)

14. Future Work • We will implement Coded Co-operation in OFDM and get better result . • In RCPC codes & Turbo codes we can use Coded Co-operation. • In’s our future work to make it more effective.

15. Conclusion As stated at the field of • high-data-rate, • efficient and reliable wireless communication Coded Co-operative Communication is better over Amplify & Forward and Decode & Forward

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