Hi Nathan, Thanks for the tip I'm not sure if its same as interleaving. Suppose I have W bandwidth, and I interleave bits of two sources. I guess we only get effective W/2 bandwidth per source.
On Fri, Apr 5, 2013 at 12:05 AM, Nathan West <nathan.w...@okstate.edu>wrote: > On Thu, Apr 4, 2013 at 12:45 PM, Manu T S <manu.t.s...@gmail.com> wrote: > >> Hi Everyone, >> >> I need help regarding a problem. >> >> It's a Multiple Access Channel problem but one of the source is offset by >> half a symbol period. >> >> ######################################################## >> source1 ---> bytes_to_chunks(1) ----> chunks_to_symbol --- >> >> | >> >> ---> black_box ---> >> >> | >> source2 ---> bytes_to_chunks(1) ----> chunks_to_symbol --- >> ######################################################## >> >> I want to add these to outputs such that the the symbol corresponding to >> souce2 falls between two symbols of source1. >> >> There will be RRC waveform corresponding to every bit out of the source. >> The RRC waveform corresponding to a bit in source2 should fall between RRC >> waveform corresponding to 2 bits of source1 ( preferably at the midpoint ). >> >> I guess I can not do a streams to stream converter, before RRC, because >> what that would give me a channel with twice the bandwidth of a single >> channel. >> >> Should I work on a new RRC filter block with 2 inputs or is there any >> other way to do this? >> >> New ideas to achieve this is also welcome. >> >> -- >> Manu T S >> >> Unless I'm misunderstanding it sounds like you want to interleave bytes. > > http://gnuradio.org/doc/sphinx/gr/slicedice_blk.html?highlight=interleave#gnuradio.gr.interleave > Available in GRC Stream Conversions>Interleave > > -nw > > -- Manu T S
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