|Subject:||Re: [Discuss-gnuradio] How to choose a suitable fec method for GMSK Tx and Rx?|
|Date:||Tue, 29 Dec 2015 03:35:12 +0100|
|User-agent:||Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.1.0|
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.
On 12/29/2015 02:55 AM, 苏张 wrote:
|[Prev in Thread]||Current Thread||[Next in Thread]|