Rate Efficient Codes Correcting a Burst of Deletions or Insertions

In this letter, we construct two rate efficient codes of length n named as marker-MDS and marker-SVT codes which correct a burst of deletions/insertions of length b (error-free decoding), where b is not necessarily fixed as a constant but is proportional to n , i.e., b = tn , 0 < t < 1 . Both of these two codes consist of binary marker codes which are employed to locate the burst of deletions/insertions. Also, the marker-MDS and marker-SVT codes consist of the maximum distance separable (MDS) codes and shifted Varshamov-Tenengol'ts (SVT) codes, respectively, which are responsible for correcting erasures caused in the synchronization stage. Both the theoretical and simulation results verify that the constructed marker-MDS and marker-SVT codes provide the higher code rate than the existing run-length limited Varshamov-Tenengol'ts shifted Varshamov-Tenengol'ts (RLLVT-SVT) codes if n is not smaller than a lower bound f(t) which is determined by t .