Title: Numerical Study of APSK Format for Long-Haul Transmission and Its Performance Improvement by Zero-Nulling Method
Abstract: Transmission performance of amplitude and phase shift keying (APSK) format is studied theoretically. The extinction ratio of the amplitude shift keying (ASK) signal of the APSK format causes a trade-off of the performance between the ASK and the phase shift keying (PSK) signal of the APSK format. Then, zero-nulling method is proposed to improve the performance of the APSK format, and its effectiveness is confirmed by the numerical simulation.
Publication Year: 2008
Publication Date: 2008-07-01
Language: en
Type: article
Indexed In: ['crossref']
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