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Performance evaluation of DF-based cooperative DCSK for next-generation wireless networks.
Maiss M Al-Khasawneh1, Mamoun F Al-Mistarihi1, Moawiah Alhulayil2
1Department of Electrical Engineering, Jordan University of Science and Technology, Irbid, 22110, Jordan.
Scientific Reports
|May 22, 2026
Summary
This study analyzes cooperative Differential Chaos Shift Keying (DCSK) with decode-and-forward (DF) relaying. Performance improves with less severe fading and a strong relay-destination link.
Area of Science:
- Wireless communication systems
- Signal processing for communications
Background:
- Differential Chaos Shift Keying (DCSK) is a non-coherent modulation method suitable for fading channels.
- Cooperative communication enhances reliability by using relays to forward information.
Purpose of the Study:
- To evaluate the performance of a cooperative DCSK system using decode-and-forward (DF) relaying.
- To analyze system behavior in Rayleigh and Nakagami-m fading environments.
Main Methods:
- Developing analytical expressions for outage probability and average capacity.
- Examining bit error rate through analytical methods and Monte Carlo simulations.
Main Results:
- System performance is significantly influenced by the Nakagami-m fading parameter, with less severe fading yielding better reliability.
- The link between the relay and destination is crucial for achieving cooperative gains.
Conclusions:
- The study provides an analytical and numerical characterization of a two-user DF cooperative DCSK system under specific channel conditions.
- Findings highlight the importance of fading severity and relay-destination link quality for system performance.
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