From Figure 9(a) (Supplementary material (available here)), the delivery ratio of SHSA is almost the same with SHSB. The SHSA is based on regular based during constructing cluster, which can make each regular node assigned to a cluster head.
Case number Constructing cluster Maintaining routing Case 1 SHSA Scheme 1 Case 2 SHSB Scheme 1 Case 3 SHSA Scheme 2 Case 4 SHSB Scheme 2
(33.) Manitoba Liberal, 19 January 1872, "Hints to Immigrants"; SHSB, Fonds Archiepiscopale Catholique Romaine de Saint-Boniface, Serie Alexandre Tache, (Tache Papers), pp.
(36.) SHSB, Tache papers, pp.T8888-8901, Archibald to Royal et al., 30 May 1871.