Wireless Communications with Low-Resolution Quantization
Wireless communication systems with low-resolution quantization are expected to play a major role in future wireless networks due to their potential to enhance network energy efficiency. This research project aims to conduct a comprehensive study of the performance impact of low-resolution quantization at the receiver in wireless communication systems, compared with traditional high-resolution systems. To that end, we study optimal detectors and derive fundamental insights into the error probability performance of low-resolution quantization-based wireless communication systems in the presence of fading and noise.
PhD Thesis
Journal Papers
S. Gayan, C. Luckshan, H. Inaltekin, R. Senanayake, and J. Evans, "On the Channel Capacity of Communications With Low-Resolution ADCs Over Fading Channels," in IEEE Communications Letters, vol. 29, no. 11, pp. 2681-2685, Nov. 2025.
C. Luckshan, S. Gayan, H. Inaltekin, R. Zhang, and D. Akman, "NeuroDetect: Deep Learning-Based Signal Detection in Phase-Modulated Systems with Low-Resolution Quantization" in Sensors, 2025, 25, 3192.
S. Gayan, H. Inaltekin, R. Senanayake, and J. Evans, "The Cost of Noncoherence: Avoiding Channel Estimation Through Differential Encoding in Phase Quantized Systems," in IEEE Open Journal of the Communications Society, vol. 4, pp. 2578-2595, 2023
S. Gayan, R. Senanayake, H. Inaltekin, and J. Evans, "Low-Resolution Quantization in Phase Modulated Systems: Optimum Detectors and Error Rate Analysis," in IEEE Open Journal of the Communications Society, vol. 1, pp. 1000-1021, 2020.
Conference Papers
C. Luckshan, T. Gnanasena, S. Gayan, and H. Inaltekin, "Learning-Based Optimal ADC Bit Allocation in Quantized MIMO Systems," Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 2025, pp. 263-268.
S. Gayan, R. Senanayake, H. Inaltekin, and J. Evans, "Reliability Characterization for SIMO Communication Systems with Low-Resolution Phase Quantization under Rayleigh Fading," in IEEE Open Journal of the Communications Society, vol. 2, pp. 2660-2679, 2021.
S. Gayan, H. Inaltekin, R. Senanayake, and J. Evans, "Differential MPSK with n-Bit Phase Quantization," 2023 IEEE International Symposium on Information Theory (ISIT), Taipei, Taiwan, 2023, pp. 2553-2558.
S. Gayan, R. Senanayake, H. Inaltekin, and J. Evans, "Selection Combining for Multi-Antenna Communication with Low-Resolution ADCs," 2021 IEEE International Symposium on Information Theory (ISIT), 2021, pp. 3343-3348.
S. Gayan, H. Inaltekin, R. Senanayake, and J. Evans, "Phase Modulated Communication with Low-Resolution ADCs," ICC 2019 - 2019 IEEE International Conference on Communications (ICC), 2019, pp. 1-7.
S. Gayan, R. Senanayake, and J. Evans, "On the symbol error probability for QPSK with quantized observations," 2017 27th International Telecommunication Networks and Applications Conference (ITNAC), 2017, pp. 1-6.