“…Core-based QoS-routing solutions proposed to date restricted the processing range to a subset of the solution space, which in turn restricted the efficiency of the potential results [12]. In [10], we proposed a basic core selection algorithm, SPAN, resulting in a distributed, QoS-constrained solutions in the extended solution space under the corebased architecture. SPAN processed solely on the connectivity information each candidate core provides the group members, yet consistently outperformed its counterparts in the literature.…”