Number of gray codes on a constellation












1














I wonder how many binary gray codes exists for a constellation?



A constellation is a set of points in 2D-space, and as mentioned in http://en.wikipedia.org/wiki/Constellation_diagram, there is a corresponding gray code (http://en.wikipedia.org/wiki/Gray_code).



At the time, I am only interested in circular and square constellation of size $2^k$ points for an arbitrary $k$.



My first guess was $nlog(n)!$, since there is a permutation possible and where the zero is, was proven wrong by exhaustive counting of circular constellation of size 8 (PSK8), which have 96 gray codes.



If anyone can prove it or give a counter example on the square for this formula, it would be very good.










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    1














    I wonder how many binary gray codes exists for a constellation?



    A constellation is a set of points in 2D-space, and as mentioned in http://en.wikipedia.org/wiki/Constellation_diagram, there is a corresponding gray code (http://en.wikipedia.org/wiki/Gray_code).



    At the time, I am only interested in circular and square constellation of size $2^k$ points for an arbitrary $k$.



    My first guess was $nlog(n)!$, since there is a permutation possible and where the zero is, was proven wrong by exhaustive counting of circular constellation of size 8 (PSK8), which have 96 gray codes.



    If anyone can prove it or give a counter example on the square for this formula, it would be very good.










    share|cite|improve this question



























      1












      1








      1


      1





      I wonder how many binary gray codes exists for a constellation?



      A constellation is a set of points in 2D-space, and as mentioned in http://en.wikipedia.org/wiki/Constellation_diagram, there is a corresponding gray code (http://en.wikipedia.org/wiki/Gray_code).



      At the time, I am only interested in circular and square constellation of size $2^k$ points for an arbitrary $k$.



      My first guess was $nlog(n)!$, since there is a permutation possible and where the zero is, was proven wrong by exhaustive counting of circular constellation of size 8 (PSK8), which have 96 gray codes.



      If anyone can prove it or give a counter example on the square for this formula, it would be very good.










      share|cite|improve this question















      I wonder how many binary gray codes exists for a constellation?



      A constellation is a set of points in 2D-space, and as mentioned in http://en.wikipedia.org/wiki/Constellation_diagram, there is a corresponding gray code (http://en.wikipedia.org/wiki/Gray_code).



      At the time, I am only interested in circular and square constellation of size $2^k$ points for an arbitrary $k$.



      My first guess was $nlog(n)!$, since there is a permutation possible and where the zero is, was proven wrong by exhaustive counting of circular constellation of size 8 (PSK8), which have 96 gray codes.



      If anyone can prove it or give a counter example on the square for this formula, it would be very good.







      combinatorics






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      share|cite|improve this question













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      edited Nov 28 '18 at 14:38









      amWhy

      192k28225439




      192k28225439










      asked Feb 18 '14 at 15:33









      mnzmnz

      795




      795






















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