Coupled-Subcarrier Frequency and Polarization Coded Probabilistic Constellation for ROADM Systems

2017 ◽  
Author(s):  
Takahiro Kodama ◽  
Masanori Hanawa
Keyword(s):  
Subcarrier Frequency

scholarly journals Analysis of Intercarrier Interference Cancellation Scheme in OFDM Systems

2012 ◽  
Vol 1 (1) ◽  
pp. 13-23
Author(s):  
Nasir Salh Almisbah ◽  
Elessaid S Saad
Keyword(s):  
Interference Cancellation ◽  
Orthogonal Frequency Division Multiplexing ◽  
Modulation Scheme ◽  
Intercarrier Interference ◽  
Frequency Division ◽  
Ofdm Systems ◽  
Ieee 802.11A ◽  
Wireless Standards ◽  
Carrier To Interference Ratio ◽  
Subcarrier Frequency

Abstract: Orthogonal Frequency Division Multiplexing (OFDM) is an emerging multi-carrier modulation scheme, which has been adopted for several wireless standards such as IEEE 802.11a and HiperLAN2. In OFDM systems, the performance is very sensitive to subcarrier frequency errors (offset). This paper shows the analysis and derivations of intercarrier interference (ICI) complex gain that used in self-cancellation scheme and its dependence on subcarrier frequency offset. Simulation shows that better improvement in performance is achieved for systems that use this cancellation scheme. Moreover, analysis and simulation show that theoretical carrier-to-interference ratio (CIR) for OFDM with cancellation scheme is greater than conventional one by more than 14dB.DOI: 10.18495/comengapp.11.013023

An optically repeated SCM system with subcarrier frequency conversion

2000 ◽  
Vol 84 (1) ◽  
pp. 1-10 ◽  
Author(s):  
Hideyuki Nasu ◽  
Kiyoyuki Isawa ◽  
Tomomichi Matsunaga ◽  
Shin-ichi Takashima ◽  
Hideyuki Omura
Keyword(s):  
Frequency Conversion ◽  
Subcarrier Frequency

Blind Subcarrier Frequency Ambiguity Resolution for OFDM Signals Over Selective Channels

2004 ◽  
Vol 52 (9) ◽  
pp. 1532-1537 ◽  
Author(s):  
V. Lottici ◽  
M. Luise ◽  
M. Marselli ◽  
R. Reggiannini
Keyword(s):  
Ambiguity Resolution ◽  
Ofdm Signals ◽  
Subcarrier Frequency
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