1 Department of Electronic Systems, The Faculty of Engineering and Science, Aalborg University, VBN2 The Faculty of Engineering and Science, Aalborg University, VBN3 Center for TeleInFrastructure, The Faculty of Engineering and Science, Aalborg University, VBN4 Infrastructure, Services and Entrepreneurship, The Faculty of Engineering and Science, Aalborg University, VBN
A fundamental challenge in the design of Wireless Sensor Network (WSNs) is the proper utilization of resources that are scarce. The critical challenge is to maximize the bandwidth utilization in data gathering and forwarding from sensor nodes to the sink. The main design objective is to utilize the available bandwidth efficiently. The proposed Bandwidth Efficient Cluster- based Data Aggregation (BECDA) algorithm presents the solution for the effective data gathering with in-network aggregation. It considers the network with heterogeneous nodes in terms of energy and mobile sink to aggregate the data packets. The optimal approach is achieved by intra and inter-cluster aggregation on the randomly distributed nodes with the variable data generation rate. The proposed algorithm uses the correlation of data within the packet for applying the aggregation function on the data generated by nodes. BECDA shows significant improvement in PDR (67.44 & 26.79 %) and throughput (41.25 & 26.16 %) as compared to the state-of-the-art solutions.
Computers and Electrical Engineering, 2015, Vol 41
Bandwidth; Clustering; Data aggregation; Energy consumption; Throughput; Wireless Sensor Network