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Inter-Signal Distortion Analysis in Multidimensional QAM-MDPSK Modulation Optical Access Transmissions
- Authors
- JOUNGMOON LEE; INHO HA; 박진우; Sang Kook Han
- Issue Date
- Apr-2022
- Publisher
- Institute of Electrical and Electronics Engineers
- Keywords
- multi-dimensinoal optical transmission; quadrature amplitude modulation (QAM); differential phase shift keying (DPSK); inter-signal distortion
- Citation
- IEEE Access, v.10, pp 47,266 - 47,274
- Journal Title
- IEEE Access
- Volume
- 10
- Start Page
- 47,266
- End Page
- 47,274
- ISSN
- 2169-3536
- Abstract
- We report a multi-dimensional quadrature amplitude modulation with M-ary differential phase shift keying (QAM-MDPSK) modulation for optical access network transmission systems employing a Mach-Zehnder modulator (MZM) and a phase modulator (PM) in a direct detection system. Even though several problems that occur in a QAM-DPSK employing a single MZM were solved, inter-signal distortion between two modulations remains when the optical phase signal is converted into an optical intensity signal for detection. To maximize the transmission capacity of QAM-MDPSK, the effect of inter-signal distortion in QAM-MDPSK need to be analyzed for optimization. Mathematical analysis and simulations were performed to evaluate inter-signal distortion. Furthermore, experimental transmission on the proposed QAM-MDPSK modulation has been performed to verify the inter-signal distortion analysis.
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Collections - College of Engineering > 공과대학 전기전자공학부 > 공과대학 전기전자공학과 > 1. Journal Articles
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