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Numerical Study of APSK Format for Long-Haul Transmission and Its Performance Improvement by Zero-Nulling Method

Hidenori TAGA, Jyun-Yi WU, Wei-Tong SHIH, Seng-Sheng SHU

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Summary :

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
IEICE TRANSACTIONS on Communications Vol.E91-B No.7 pp.2165-2168
Publication Date
2008/07/01
Publicized
Online ISSN
1745-1345
DOI
10.1093/ietcom/e91-b.7.2165
Type of Manuscript
Special Section PAPER (Joint Special Section on Opto-electronics and Communications toward NGN and beyond)
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