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HARMINDER KAUR1,* , MANJIT SINGH BHAMRAH1, BALJEET KAUR2
This paper presents the design and performance analysis of a high-capacity radio-over-fiber (RoF) transmission system based on polarization division multiplexing (PDM), 16-ary quadrature amplitude modulation (16-QAM), and orthogonal frequency division multiplexing (OFDM). The proposed system transmits 160 Gbps data over optical fiber and employs advanced signal processing techniques at the receiver, including channel estimation and carrier phase estimation, to mitigate the adverse effects of channel impairments and enhance signal quality. System performance is comprehensively evaluated using bit error rate (BER), error vector magnitude (EVM), and received optical power as key metrics. Simulative results demonstrate reliable 160 Gbps data transmission along 110 km range with log(BER) values i.e. below the forward error correction (FEC) threshold and EVM percentages within acceptable limits ( ). Additionally, receiver sensitivity is assessed under various transmission scenarios, including back-to-back, 50 km, and extended 110 km fiber links, through BER and EVM versus received optical power analyses and constellation diagram observations for both X and Y polarizations. The findings confirm the effectiveness of the proposed signal processing methods in maintaining highquality transmission and provide valuable insights for the development of robust, high-speed RoF systems.
PDM, 16-QAM, OFDM, RoF, Channel Estimation, Carrier Phase Estimation.
HARMINDER KAUR, MANJIT SINGH BHAMRAH, BALJEET KAUR, Performance evaluation of a 160 Gbps PDM-16-QAM-OFDM RoF transmission using DSP algorithms, Optoelectronics and Advanced Materials - Rapid Communications, 19, 11-12, November-December 2025, pp.511-519 (2025).
Submitted at: June 23, 2025
Accepted at: Dec. 2, 2025
Optoelectronics and Advanced Materials - Rapid Communications
(2024): Impact Factor = 0.4 - Journal Citation Reports (Clarivate Analytics, 2025)
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