Extension design of PLS codes in DVB-S2 based satellite broadcasting system

DVB-S2 based satellite broadcast system benefits from adaptive coding and modulation (ACM) for improving the bandwidth efficiency, which yields physical layer signaling (PLS) codes in the head of the physical frame. However, with the increasing types of ACM, the reserved assignable PLS codes will be soon exhausted. In this paper, the extension design of PLS codes is proposed, which will meet the requirement of the large number of ACM. On the other hand, compared with the traditional design, the extension design has equivalent performance without suffering from intolerable degradation.