Mike, there are roughly 3 ways you can parallelize these algorithms: 1) packet-level: run a lot of codewords at the same time 2) subblock level: divide each codeword into pieces (overlapping) and run SISOs on each one of them in parallel 3) trellis level: do ACS operations in parallel
take a look at the following link and references to get some ideas (not claiming it is a seminal paper though :-)) http://web.eecs.umich.edu/~anastas/docs/turbogpu.pdf best, Achilleas
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