Effective constraint length of ´cyclic´ convolutional self orthogonal codes

The paper shows that all ´cyclic´ convolutional self orthogonal codes (CSOCs) generated by cyclic sets of even order have effective constraint lengths which meet the lower bound developed recently, and that the lower bound is a limiting bound for all CSOCs. Also, new upper bounds on the effective constraint length are developed for non-´cyclic´ and ´cyclic´ CSOCs.