Thread Links Date Links
Thread Prev Thread Next Thread Index Date Prev Date Next Date Index

[STDS-802-16] interleaver example in 802.16-2004 not correct ?



Dear All,

I am building 802.16e baseband model. I have tried to test each module one by one and I have found that the example given in pg 619 of 802.16-2004 is probably wrong ?  I have tried  Ncpc = number coded bits per subcarrier = QPSK = 2, while Ncbps = total bits to be transmitted after CC encoding & punctuing = 24 x 8 = 192 bits. Using Ncpc = 2 and Ncbps = 192 does not give me the correct results, but interestingly, using Ncpc = 16QAM = 4 and Ncbps = 192 give me the correct answer. Is the example sin 802.16-2004 wrong ? Is there any corrected version ? I have not been able to find the correction in latest document 802.16-2005. Would anyone be able to give me some clarification ?

Regards,
Art.