On the Utilization of ID-based Connected Dominating Sets for Mobile Ad hoc Networks

The design of routing protocols based on connected dominating set (CDS) has been recognized as a suitable approach for routing in mobile ad hoc networks (MANETs). There are multiple ways to form a CDS within a given MANET, and the algorithm used for CDS formation will affect the performance and lifetime of the CDS and the performance of the MANET as a whole. In this study, the well-known ID-based CDS (ID-CDS) formation method is analyzed and compared to the commonly used method of maximum density based CDS (MaxD-CDS) formation. The idea of the ID-CDS approach is to select nodes with larger node IDs to be part of the CDS, whereas the MaxD-CDS approach prefers nodes with a larger number of uncovered neighbors (a larger density) for CDS selection. Simulation results reveal that the ID-based CDS has a significantly longer lifetime in comparison to the MaxD-CDS; an extended CDS lifetime can directly bring performance improvement to the entire MANET. In our performance simulations, the ID-based CDS is also observed to incur a relatively larger number of nodes and edges, a factor that helps to lower the average hop count and hence the end-to-end delay