الفهرس 
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Abstract
Nowadays, the recent developments in the field of wireless sensor networks (WSNs) have initiated new applications of WSNs in border monitoring, railway track monitoring, structural health monitoring of bridges, machines surveillance, and preventive maintenance. One of the emerged wireless sensor networks topologies are linear wireless sensor networks (LWSNs). They have been widely applied in oil and gas pipelines infrastructure monitoring applications to enable the automatic measurement, analyses, storage and transmission of real-time data. Minimization of energy consumption of LWSNs is crucial for their proper usage. Using two different system models, this research investigates the minimization of LWSNs energy consumption using optimal node placement strategies compared to simple equal-distance placement scheme. Also, the research studies the effect of using multiple sink nodes against single sink node on the total energy consumption of the network. Moreover, different multiple sink nodes placement strategies are investigated to minimize the power consumption of the network. Finally, a wireless cathodic protection (Wi-CP) system is proposed and implemented as a LWSN for remotely monitoring and controlling of oil and gas pipelines.