QoS Routing Algorithms for Wireless Sensor Networks by K. R. Venugopal & Shiv Prakash T. & M. Kumaraswamy

Author:K. R. Venugopal & Shiv Prakash T. & M. Kumaraswamy
Language: eng
Format: epub
ISBN: 9789811527203
Publisher: Springer Singapore

5.3 System Model and Problem Definition

Consider a N number of autonomous nodes out of which one node is assigned the sender node (SN) and all other nodes are receiver nodes , i . All the receiving nodes need to send the response at different times in order to avoid collisions after receiving the time synchronization message from the sender node. The communication range of a sensor node is assumed to be less than a few hundred meters and a communication channel exists between each node with other sensor nodes. The procedure of time synchronization for distributed systems is to provide a standard notion of time across the WSNs. Time synchronization refers to the issue of synchronization of clocks across a number of sensor nodes that are connected to one another over one-hop WSNs as shown in Fig. 5.1. The main objectives of the proposed work are to (i)Minimize the Synchronization error.

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