2026-04-13T04:54:44Zhttps://recercat.cat/oai/request

oai:recercat.cat:2117/262402026-01-25T02:17:48Zcom_2072_1033col_2072_452950

00925njm 22002777a 4500 dc Doudou, Messaoud author Djenouri, Djamel author Barceló Ordinas, José María author Badache, Nadjib author 2014 The real-world node deployment aspect is investigated, while considering cost minimization for resolving the energy hole around the sink, which represents a serious problem in typical sensor networks with uniform distribution. A novel strategy is proposed that is based on the use of two sinks and a few extra relay nodes close to the sinks' areas. The traffic is then alternatively sent to the sinks in every other cycle. As a second contribution, an efficient data collection mechanism has been developed to determine the optimal data rate that meets delay requirements of individual sensor reports and improves the network lifetime. The comparison of the proposed node deployment strategy with uniform, non-uniform geometric and linear increase node distributions demonstrates that the cost of the proposed solution is very close to that of the uniform distribution and much lower than all the others, while achieving a load balancing at the same order of the state-of-the-art solutions. Peer Reviewed Postprint (author’s final draft) Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors Telecommunication -- Traffic -- Management Wireless sensor networks Data collection Energy-efficiency Node deployment Telecomunicació -- Tràfic -- Gestió Xarxes de sensors Cost effective node deployment strategy for energy-balanced and delay-efficient data collection in wireless sensor networks