De Bruijn sequences are highly important nonlinear shift register sequences. The homogeneous complexity Ck() of degree of a De Bruijn sequence is defined and discussed. Its upper bound is given. The linear complexity and the quadratic complexity are special cases of Ck() for k=1 and k= 2 respectively.
A. H. Chan et al., J. Combin Theory, Series A, 33(1982)3, 233-246.[2]L. E. Key, IEEE Trans. on IT, IT-22(1976)6, 732-736.[3]A. H. Chan et al., IEEE Trans. on IT, IT-36(1990)3, 640-644.[4]T. Etzion et al., IEEE Trans. on IT, IT-30(1994)5, 705-709.[5]A. H. Chan et al., IEEE Trans. on IT, IT-36(1990)4, 822-829.[6]万哲先, 刘木兰,代宗铎,冯绪宁,非线性移位寄存器,科学出版社,北京,1978年,第73-77页.