Monika Kapoor
M. Zahid Alam
Prashant Chaturvedi
- Professor, Department of Electronics & Communication Engineering, Lakshmi Narain College of Technology, Bhopal, Madhya Pradesh, India
- Professor, Department of Electronics & Communication Engineering, Lakshmi Narain College of Technology, Bhopal, Madhya Pradesh, India
- Assistant Professor, Department of Electronics & Communication Engineering, Lakshmi Narain College of Technology, Bhopal, Madhya Pradesh, India
Abstract
The main objective of this research paper is to make a comparison between Investigate the performance of Reed-Solomon and BCH codes across different modulation schemes concerning coding gain and coding rate within an Additive White Gaussian Noise (AWGN) channel system, while maintaining a constant transmission bandwidth. In this paper BER vs. S/N performance of a Simulink model is validated with MATLAB results for a RS GMSK based system for various (n, k) combinations. In RS GMSK (63,K) system coding gain is although not achieved up to 5 dB but after this it is significantly high which shows the utility if a coded system over un coded one. For various other RS GMSK (n, k) combinations like (31,k),(127,K)coding gain is achieved right from 0 dB although not as high as compared to RS GMSK (63,K) system. A notable decrease in Bit Error Rate (BER) is noticed in RS GMSK-based systems as the number of parity symbols increases or the coding rate decreases. The same effect over coding gain and coding rate is achieved in a RS based system with other modulation schemes like BPSK, DPSK, QPSK and FSK but not as comparable to GMSK modulation scheme. The findings indicate that, within a specific bandwidth, opting for RS GMSK instead of BCH GMSK with (63, k) combinations across various modulation schemes yields the lowest BER across different signal-to-noise ratios. Same time it has been observed that for BCH encoding the effect of increase in parity symbols over reduction in BER is not observed with any of the modulation schemes although obtained BER values are lesser than that of RS encoding.
Keywords: AWGN, BCH code, BER, DPSK, FSK, Galois field, GMSK ,PSK, RS Code , QPSK.
[This article belongs to Research & Reviews: A Journal of Embedded System & Applications(rrjoesa)]
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Research & Reviews: A Journal of Embedded System & Applications
| Volume | 12 |
| Issue | 01 |
| Received | March 15, 2024 |
| Accepted | March 20, 2024 |
| Published | April 4, 2024 |