An efficient algorithm for constructing a connected dominating set in mobile ad hoc networks

• Published in: Journal of parallel and distributed computing Vol. 71; no. 1; pp. 27 - 39
• Main Authors: Yin, Bolian, Shi, Hongchi, Shang, Yi
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier Inc 2011; Elsevier
• Subjects: Ad hoc networks; Adaptive control systems; Algorithms; Applied sciences; Computer science; control theory; systems; Computer systems and distributed systems. User interface; Connected dominating set; Construction; Delay; Distributed clustering algorithm; Dynamic topology; Dynamics; Exact sciences and technology; Networks; Phases; Software; Strength; Topology; Ad hoc networks; Connected dominating set; Distributed clustering algorithm; Dynamic topology; Mobile ad hoc network; Backbone; Dominating set; Updating; Graph theory; Multiple comparison; Distributed system; Delay; Network topology; Distributed algorithm; Wireless network; Ad hoc network; Diameter; Mobile computing; Asynchronous transmission
• ISSN: 0743-7315; 1096-0848
• DOI: 10.1016/j.jpdc.2010.05.008

The connected dominating set (CDS) is widely used as a virtual backbone in mobile ad hoc networks. Although many distributed algorithms for constructing the CDS have been proposed, nearly all of them require two or more separated phases, which may cause problems such as long delay in the later phases when the network size is large. This paper proposes a Distributed Single- Phase algorithm for constructing a connected dominating set, DSP-CDS, in ad hoc networks. The DSP-CDS is an asynchronous distributed algorithm and converges quickly in a single phase. Each node uses one-hop neighborhood information and makes a local decision on whether to join the dominating set. Each node bases its decision on a key variable, strength, which guarantees that the dominating set is connected when the algorithm converges. The rules for computing strength can be changed to accommodate different application needs. The DSP-CDS adapts well to dynamic network topologies, upon which the algorithm makes only necessary local updates to maintain the CDS of the network. The performance of the DSP-CDS can be tuned by adjusting two main parameters. Extensive simulations have demonstrated that those parameters can affect the CDS size, the CDS diameter, and number of rounds for the algorithm to converge. Comparisons with other multiple-phase CDS algorithms have shown that the DSP-CDS converges fast and generates a CDS of comparable size. ► A distributed single-phase connected dominating set construction algorithm ► Converges quickly and generates dominating set with small size ► Scalable to large networks and adaptive to dynamic network topology ► Parameters to control the size and the diameter of the dominating set