Seyed Reza Nabavi - Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran
Mehdi Najafi - Department of Electrical and Computer Engineering, Faculty of Amirkabir, Markazi Branch, Technical and Vocational University (TVU), Arak, Iran

Wireless Sensor Networks (WSNs) is one of the most important types of networks in the world where sensors collect information within a specific area and send the data to a central point called the Base Station (BS). Many researchers have attempted to develop or improve the performance of WSNs by trying to mitigate the limitations and challenges facing WSNs. The most important challenge is to reduce energy consumption in a limited battery power supply of sensor nodes. Energy is consumed by sensor nodes in WSNs to perform three significant functions namely data sensing, transmitting and relaying. Various energy-saving routing protocols have been proposed to solve this problem to maintain the lifetime of the network for longer periods. In this paper, we propose an optimal routing protocol using multi-objective cultural algorithm for wireless sensor networks (ORPMCA). The simulation results showed that the ORPMCA protocol extends the lifetime of the WSN compared to other protocols by ۱۵%.

Multi-Objective Cultural Algorithm, Wireless Sensor Networks, Routing Protocol