IV - Extra » History » Version 4

COLIN, Tony, 12/15/2015 09:33 AM

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h1. IV - Extra
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h2. 4. Measurement of encoding/decoding time.
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POSIX requires that CLOCKS_PER_SEC equals 1000000 independent of the actual resolution.
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p=. !Clock1.png!
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*1000 ticks per milliseconds*
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p=. !Clock2.png!
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*Time measurement of data encoding*
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p=. !Clock3.png!
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*Printing clock data*
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p=. !Time_RS_resized.PNG!
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*Chart of Reed Solomon time measurement*
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Floating-Point OPeration (FLOP)
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p=. !FLOPs2.png!
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p=. !Memory.png!
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Hence, encoding stands for *O(nbytes x NPAR)* with _nbytes_ is the codeword length, _NPAR_ the number of parity bits.
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Since it is a systematic code _nbytes = information_word_length + NPAR_ encoding stands for *O(information_word_length)* with NPAR constant.
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Research papers proposed on IEEE Website :
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- "Transport layer coding for the land mobile satellite channel":http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=1391458&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D1391458
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- "Erasure Codes for Space Communications: Recent Findings and New Challenges":http://ieeexplore.ieee.org/xpl/login.jsp?tp=&arnumber=6333092&url=http%3A%2F%2Fieeexplore.ieee.org%2Fxpls%2Fabs_all.jsp%3Farnumber%3D6333092