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Improve of the overall network efficiency between source and destination relay selection and interference free communication is important criteria in WSN. In this paper we are proposing SON based algorithm capable of simultaneous Scheduling and Routing in WSN. The proposes scheme contains the three stages, in first stage the sensor nodes are classified into different clusters and each nodes having...
Wireless Sensor network (WSN) has added a new dimension in the field of wireless communication. As the sensor nodes are placed at remote places and are equipped with limited sources of battery power, proper energy efficient routing algorithms as well as clustering protocols are highly needed to make the system more energy efficient. Such an energy efficient clustering algorithm has been presented...
Wireless sensor networks require protocols which are energy efficient to improve the network lifetime. This work mainly focuses on the cross-layer implementation that takes routing module and MAC module for the required application. At the routing layer unequal clustering is taken, which employe tunable range for cluster radius and eliminates the burden on nodes which are near to base station. At...
In remotely deployed Wireless Sensor Networks (WSN) software faults may occur due to sensor nodes process failures. Fault diagnosis remains a challenging task due to physical inaccessibility of sensor nodes, energy constraints and varying application requirements for latency and reliability. WSN once deployed resort to fault management mechanisms to ensure continued operation. While fault detection...
Wireless sensor networks (WSNs) consist of small nodes with sensing, computation and communications capabilities. Due to the limited processing power, and finite power available to each sensor node, regular ad hoc routing techniques cannot be directly applied to sensor networks domain. Thus, energy-efficient routing algorithms suitable to the inherent characteristics of WSNs are required. The hierarchical...
Network lifetime has become the key characteristic for evaluating sensor networks in an application-specific way. In this paper, we focus on Mobile Wireless Sensor Networks, which are specific opportunistic networks because of their poor connectivity among the mobile sensors, and thus it is difficult to form a well connected mesh network for transmitting data through end-to-end connections from the...
This paper investigates the best way for representing wireless sensor networks using various topologies of ZigBee. The use of coordination with such networks was investigated together with coordinator load. The investigation has been achieved via the use of different scenarios in the OPNET Modeler simulator. The simulation study investigates the use of coordination with star routing, mesh routing...
In many-to-one or many-to-few traffic scenarios, It is inevitable that `hot spots?? will occur where traffic from a number of sources gets accumulated. While these hot spots can not be avoided, they can be mitigated by means of distributing the traffic across forwarders with load balancing techniques. In this paper, we define a load imbalance metric, which is applicable to any tree/hierarchy based...
Wireless sensor networks (WSNs) enable pervasive, ubiquitous, and seamless communication with the physical world. This paper presents P2P multi-agent data transfer and aggregation system architecture in WSNs. The architecture includes four types of agents: interface, query, routing, and data acquisition agents. The interface agent interacts with the users to fulfil their interests. The routing agent...
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