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Vetrbi Decoding ?
Infact matlab help itself has very good starting info availabe about convolutiona coder and vitebi decoding....
& in 2006(a) and above version- vitdec - command become very poweful with addition of code puncturing thing etc......
coding in wimax
Hi yasiranwar and fm_com_28, first of all I have little reservation about the title of your FYP projects if u r only going to implement viterbi decoder coz as per IEEE 802.16-2004 (Section 8.3.3) and IEEE 802.16e –2005 standards The channel codec for WiMAX is always...
A sequential decoder works by generating hypotheses about the transmitted codeword sequence. it computes a metric between these hypotheses and the received signal. it goes forward as long as metric indicates that its choice are likely otherwise it goes backward, changing hypotheses until if...
soft decision and hard decision
Soft and hard decision is channel characterstic, and u can never send bits directly through channel u must have to do modulation & demodulation ( mapping / demapping stuff mentioned in spweda post)....
if we talk in cellular arena..... Hard/ Soft decision is...
For initial understanding of 1/2-rate Viterbi decoder, use "digital communications, fundamentals & Applications" by saklar... specially its Viterbi decoding example is very illustrative....
1st hand info about traceback length, puncturing and soft/hard decision of VD is ava in matlab helpdesk...
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