Hello Franklin, the choice of appropriate FEC depends *exclusively* on how you want the system to behave, and how you model your transmission, especially with respect to noise. For example, for low-SNR situation, using channel coding actually makes BER worse, so you might even be better off without FEC.
Hence, it is a decision that only *you* can make after defining and testing your transmission system. There's GMSK demos in GNU Radio, for example gr-channels/examples/demo_gmsk.grc . There also is a lot of different FEC available, from the "generic" gr-fec stuff over to the highly efficient yet specific polar codes present in newest GNU Radio. Best regards, Marcus On 12/29/2015 02:55 AM, 苏张 wrote: > Hi all, > > I want to build a real tx and rx system using gmsk with usrp and > gnuradio. How to choose a suitable fec method for my system. Is there > any useful demo or tutorial for me? Thanks. > > Franklin > > 张苏 （+86）18705191872 17715261872 > 地址 江苏南京玄武区钟灵街48号94栋1单元602 > > > _______________________________________________ > Discuss-gnuradio mailing list > [email protected] > https://lists.gnu.org/mailman/listinfo/discuss-gnuradio
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