Distributed Energy-Efficient Approaches for Connected Dominating Set Construction in Wireless Sensor Networks

Najla Al-Nabhan, Mznah Al-Rodhaan, Abdullah Al-Dhelaan
2014 International Journal of Distributed Sensor Networks  
Energy efficiency is one of the major issues in wireless sensor networks (WSNs) and their applications. Distributed techniques with low message and time complexities are expected in WSNs. Connected dominating sets (CDSs) have been widely used for virtual backbone construction in WSNs to control topology, facilitate routing, and extend network lifetime. Most of the existing CDS approaches suffer from a very poor approximation ratio, high time, and message complexities. This paper proposes two
more » ... el approaches for CDS distributed construction in WSNs. The proposed approaches are intended to construct a small CDS as well as allowing energy-efficient CDS construction and maintenance in WSNs. Simulation shows that our distributed approaches have an approximation factor of 7.5 to the optimal CDS. This approximation outperforms the existing distributed CDS construction algorithms.
doi:10.1155/2014/625061 fatcat:c6hex5faj5aorhp7xn5noxt6zi