Hammad Maqsood

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Many routing protocols are proposed regarding energy efficiency in underwater wireless sensor networks (UWSNs). We propose sparsity-aware energy efficient clustering (SEEC) protocol for UWSNs. SEEC specially search sparse regions of the network. We divide the network region into subregions of equal size and search sparse and dense regions of the network(More)
Underwater environment has very unique characteristics. Reliable and efficient communication between sensor nodes is very challenging. Firstly, because radio waves can not work well in such environment, so we use acoustic communication. Secondly, acoustic communication is very slower than radio communication. Moreover environment is very dynamic, which(More)
In this paper, we present the mobile autonomous underwater vehicle (AUV)-aided efficient localization scheme for underwater wireless sensor networks (UWSNs). Localization is one of the major issues in UWSNs as it is important in some large scale applications to know the accurate position of sensor nodes. It is more difficult to localize a node in underwater(More)
In this paper, we have proposed a two-tiered wireless sensor network (WSN) in which sensor nodes transmit data packets to their connected relay nodes (cluster heads). Each sensor node is associated with at least one relay node in the network. The proposed strategy determines the best set of relay nodes for upper-tier communication. These relay nodes are(More)
Underwater acoustic communications are a hastily growing field of research and engineering, which once were exclusively for military applications are now extending into commercial fields. Underwater Wireless Sensor Networks (UWSNs) appeal the research community, facing challenges as sensor nodes have energy constraint and radio signals are not suitable for(More)
From few past years, researchers are attracted towards the unexplored region of earth due to is extreme usefulness and that region is water. As we know 70 % of earth surface is water and only 30 % is land that is already explored well. Due to the presence of useful resources in acoustic environment, researchers felt the need to explore the unexplored world(More)
Energy is a main issue in Underwater Wireless Sensor Networks (UWSNs). The wireless sensor nodes in underwater network have limited source of energy (batteries) and replacement of their batteries is very difficult and costly. Hence, energy efficiency has always remained as a major concern in UWSNs. Moreover the variation in energy consumption of nodes(More)
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