In a diversity of applications such as surveillance, army, medical, and fire tracking, wireless sensor networks (WSNs) are regarded to be one of the most widely used technologies. Nodes in a WSN have differing amounts of memory and computational power, and their energy consumption is restricted by the network's overall size and complexity. The lifespan of WSN is influenced by the availability of restricted energy supplies. To build an energy efficient routing protocol, a cross-layer design technique known as the “Modified Positioning Response Routing Protocol (MPRRP)” was used in this study. MPRRP is meant to reduce the amount of energy spent in every node by (1) the diminution of the amount of time that a sensor network spends in the idle listening state and (2) minimizing the median transmission range throughout the network. The projected MPRRP's performance was assessed in terms of network energy usage on a per-individual as well as per-data-packet basis. The findings of the study were examined and compared to the LEACH and PRRP procedures. The findings demonstrate that the WSN has made great strides forward in terms of energy efficiency as well as total capabilities.