Intra-Cluster Grouping Mechanism for an Energy Efficient Beam Scanning Algorithm to Avoid Hidden Node Collision in Wireless Sensor Networks

摘要

Wireless Sensor Networks (WSNs) are extensively being used for remote monitoring and reporting purposes in human inaccessible areas. While transmitting the remote data to a centralized base station, a hidden node collision problem in the network that can deteriorate the functioning of a WSN. The techniques developed over the years to avoid hidden node problems consist of various grouping and scheduling strategies. However, the energy consumption is not preserved to the maximum possible level in the existing systems. In this work, two grouping strategies are proposed, Intra-Cluster Grouping Mechanism (I-CGM) and Beam Scanning Intra-Cluster Grouping Mechanism (BSI-CGM), which aim at reducing energy consumption to the best possible level. A design limitation in I-CGM is identified and overcome by the BSI-CGM. Simulation and analysis using the Network simulator proves that the Quality of Service (QoS) is further increased by these mechanisms and provides proof of concept for their efficiency.