Autonomous Modulation Categorization Algorithm for Amplify and Forward Relaying Diversity Systems
Abstract
:1. Introduction
2. Related Works
- This is the first research of its sort in the literature to provide an AMC method for amplify-and-forward (AF) relaying systems.
- The underlying structure of the received signals is utilized to mathematically create a family of correlation functions. Each one of these functions reveals spikes for a certain set of modulation schemes, but it shows nothing for other modulation schemes.
- In consideration of the aforementioned discovery attribute, a revolutionary judgment test that is predicated on the concept of a false alarm is designed.
- The proposed method has a variety of benefits, one of which is that it does not call for the channel state information or the noise power to be known.
- The proposed method can discriminate between any number of modulation schemes as long as there exist correlation functions that indicate spikes for some schemes and null for others.
3. System Model
- First time slot
- Second time slot
4. Statistical Properties of the Received Signal
- There is no correlation between and :
- The data symbols are uncorrelated with the noise samples:
- The noise samples are uncorrelated with each other:
- The channel coefficients are unknown random variables.
5. Proposed Algorithm
6. Simulation Results
7. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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Proposed Method | Method in [16] | Method in [17] | |
---|---|---|---|
Number of relays | 1 | 2 | 2 |
Relaying type | Amplify-and-forward | Decode-and-forward | Decode-and-forward |
Cooperation type | Single path | Two paths | Two paths |
Mode of operation | Blind | Blind | Data aided |
Channel estimation | Not required | Required | Required |
Packet size | Not required | Required | Required |
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Marey, M.; Mostafa, H. Autonomous Modulation Categorization Algorithm for Amplify and Forward Relaying Diversity Systems. Electronics 2022, 11, 1899. https://doi.org/10.3390/electronics11121899
Marey M, Mostafa H. Autonomous Modulation Categorization Algorithm for Amplify and Forward Relaying Diversity Systems. Electronics. 2022; 11(12):1899. https://doi.org/10.3390/electronics11121899
Chicago/Turabian StyleMarey, Mohamed, and Hala Mostafa. 2022. "Autonomous Modulation Categorization Algorithm for Amplify and Forward Relaying Diversity Systems" Electronics 11, no. 12: 1899. https://doi.org/10.3390/electronics11121899
APA StyleMarey, M., & Mostafa, H. (2022). Autonomous Modulation Categorization Algorithm for Amplify and Forward Relaying Diversity Systems. Electronics, 11(12), 1899. https://doi.org/10.3390/electronics11121899