Monday, October 31, 2011

Performance comparison of routing protocols in Wireless Sensor Networks

Wireless sensor networks consist of small nodes with sensing, computation, and wireless communications capabilities. Many routing,power management, and data dissemination protocols have been specially designed for WSNs where energy awareness is an essential design issue. Routing protocols in WSNs might differ depending on the application and network architecture. In this presentation we present a survey of state of-the-art routing techniques in WSNs. We outline the design challenges for routing protocols in WSNs followed by a comprehensive survey of routing techniques. Overall, the routing techniques are classied into three categories based on the underlying network structure: flat, hierarchical, and location-based routing. Furthermore, these protocols can be classied into multipath-based, query-based,negotiation-based, QoS-based, and coherent-based depending on the protocol operation.To prolong the lifetime of the sensor nodes, designing e cient routing protocols is critical. Even though sensor networks are primarily designed for monitoring and reporting events, since they are application dependent, a single routing protocol cannot be effcient for sensor networks across all applications.

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