Page 339 - Kaleidoscope Academic Conference Proceedings 2024

Innovation and Digital Transformation for a Sustainable World

optical wireless communication system. By adapting 256- [10] T. J. Richardson, and R. L. Urbanke, “The
QAM modulated symbols to the RS codes, we enhance capacity of low-density parity-check codes under
spectral efficiency and mitigate the adverse effects of the message-passing decoding,” IEEE Transactions on
fading channel. The results section demonstrates that the Information Theory, vol. 47, no. 2, pp. 599-618,
proposed system achieves a coding gain of 15 dB compared Feb. 2001.
to the baseline system. The proposed scheme integrates
advanced coding and modulation techniques to ensure [11] Sonali, A. Dixit and V. K. Jain, "SNR-and Rate-
reliable high-speed data transmission. Unlike the baseline Optimized LDPC Codes for Free-Space Optical
system, which treats channel coding and modulation as Channels," IEEE Access, vol. 9, pp. 13212-13223,
independent processes, our approach combines them to 2021.
optimize performance, providing a robust and efficient
solution for delivering high-speed wireless services to a [12] Sonali, A. Dixit and V. K. Jain, "Analytical
large number of users. This integrated technique not only Determination of Thresholds of LDPC Codes in
improves error correction and data integrity but also Free Space Optical Channel," in IEEE Open
maximizes the utilization of available spectrum, making it a Journal of the Communications Society, vol. 2, pp.
promising alternative for next-generation optical wireless 35-47, 2021.
communication systems.

REFERENCES

[1] I. Union, "IMT traffic estimates for the years 2020 to
2030," Rep. ITU, vol. 2370, 2015.
[2] M. Z. Chowdhury, S. A. Shahjalal, and Y. M. Jang,
"6G wireless communication systems:
Applications, requirements, technologies,
challenges, and research directions," IEEE Open
Journal of the Communications Society, vol. 1, pp.
957-975, Aug. 2020.
[3] M. Giordani, M. Polese, M. Mezzavilla, S. Rangan,
and M. Zorzi, "Toward 6G networks: Use cases
and technologies," IEEE Communication
Magazine, vol. 58, no. 3, pp. 55–61, Mar. 2020.

[4] ITU-R M2160, Framework and overall objectives of
the future development of IMT for 2030 and
beyond, pp. 1-21, Nov. 2023.

[5] A. Mourad, et. al., "Towards 6G: Evolution of Key
Performance Indicators and Technology
Trends," 2020 2nd 6G Wireless Summit, pp. 1-5,
2020.

[6] G. Caire, G. Taricco and E. Biglieri, "Bit-interleaved
coded modulation," IEEE Transactions on
Information Theory, vol. 44, no. 3, pp. 927-946,
1998.

[7] E. R. Berlekamp, Algebraic coding theory (revised
edition). World Scientific, 2015.
[8] Z. Ghassemlooy and W. O. Popoola, Terrestrial Free-
Space Optical Communications, Boca Raton, FL,
USA: CRC Press, 2010.

[9] R. Gallager, “Low-density parity-check codes,” Ph.D.
Dissertation, Department of Electrical
Engineering, MIT, Cambridge, USA, 1963.

– 295 –