Optical onboard double decoding/forward performance with long codes for optical routing
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Tarih
2019
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Spie-Soc Photo-Optical Instrumentation Engineers
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
The optical decoding and forward (ODF) performance with long systematic Hamming distance-4 (LSD_4) codes is suggested. Hereby, the LSD_4 codes are produced via generating 224 codewords of 15 bits length. The LSD_4 codes length is extremely long (equal to 4096 bits); accordingly, the encoding/decoding by the LSD_4 codes becomes more compatible with optical speed and consistency. Apparently, increasing the length of coding is concurrent with the ODF speed. Our model is grounded on hiring the LSD_4 codes in the encoding/decoding process of the onboard ODF for optical routing serial. The net gain of plugging the planned LSD_4 codes in optical routing is obtained within 5- to 15-dB range for diverse optical routing forms at code length 4096 bits with Q-ary pulse-position modulation. The numeric and simulated results confirmed the significant improvements of the planned LSD_4 codes performance with ODF over the non-LSD_4 codes ODF counterparts. (C) 2019 Society of Photo-Optical Instrumentation Engineers (SPIE)
Açıklama
mazher, wamidh jalil/0000-0003-2092-3745; Al-Rayes, Hadeel/0000-0001-9749-4024
Anahtar Kelimeler
Free-Space Optical, Optical Routing, Pulse-Position Modulation, Systematic Distance-4 Coding, Channel Coding, Atmospheric Turbulence
Kaynak
Optical Engineering
WoS Q Değeri
Q4
Scopus Q Değeri
Q2
Cilt
58
Sayı
2
