title,doi,url,abstract,journal,publication_year,pmid,arxiv Improvement in Deterministic Energy-Efficient Protocol in Wireless Sensor Network, https://doi.org/10.32628/IJSRCSEIT, https://ijsrcseit.com/CSEIT1833636, Energy saving is a vital issue while designing the Wireless Sensor Networks. The sensors are sensitive to energy consumption and cannot be recharged and replaced. The radio transmission and receiving data process of nodes consume more energy. Clustering is the technique based on node connectivity and splitting & merging of cluster performance provides more energy efficient network. DEC (Deterministic Energy-efficient Clustering) protocol is dynamic distributive self-organizing and more efficient in terms of energy than any other of the existing protocols. But DEC can be enhanced by multi level hierarchy. The fundamental concept of proposed protocol is that there is a pre-defined radius around the Base Station (located at centre) some nodes are inside the radius and others are outside the radius. Cluster Heads which are outside the radius find the nearest Cluster Head which is inside the radius and send data to it. Then these inside Cluster Heads aggregate the data and send it to the Base Station. The proposed scheme is compared against DEC protocol. The simulation result shows that the enhanced version of DEC improves the lifetime of the network as compared with DEC., International Journal of Scientific Research in Computer Science Engineering and Information Technology, 2018, CSEIT1833636