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Abstract Mobile wireless sensor networks (MWSNs) have become an attractive area in the research community, due to their critical applications in several fields such as real-time, monitoring, controlling and¬¬ tracking applications. MWSN is composed of several mobile sensor nodes, whereby they determine the lifetime of the network according to their lifetime. However, several challenges must be overcome to guarantee efficient data delivery in such networks. Moreover, frequent data updates, limited resources constraints, insufficient wireless bandwidth and Sensor Nodes (SNs) mobility make routing management a tedious task. So, routing protocols that will be designed for MWSNs should be energy efficient to increase the network lifetime and improve the process of fetching data from the mobile SNs. This thesis introduces a proposed routing protocol for MWSNs which is called Reliable Query-Driven Routing (RQR) protocol. RQR protocol introduces a proposed clustering technique which is called Multi-Hop Reliability Clustering (MRC) that provides highly control over the network. Moreover, RQR protocol employs a route discovery mechanism to discover all available routes to the destination (i.e., base station) with minimum query delay. A sensed data will be sent to the Base Station (BS) based on two different methods, which are; (i) Priority Equation (PE) method or (ii) Fuzzy Inference Engine (FIE) method according to available resources and allowable time to design the network. Also, RQR protocol performs maintenance for any failure that may occur during transmission process which increases reliability for the transmitted data. RQR protocol is simulated and tested using NS2 and compared to the recent MWSNs routing protocols. Experimental results have demonstrated the effectiveness of RQR protocol regarding data packet transmission ratio, routing overhead, end to end delay and network lifetime over the recent MWSN routing protocols. |