The Wireless Sensor Networks (WSNs) consist of thousands of tiny nodes that have sensing, computing, and wireless connectivity capabilities. Many routing protocols, energy management and data dissemination are specifically designed for wireless sensor networks where energy consumption is one of the fundamental issues. Since the protocols of wireless sensor networks have specific applications, the focus is on routing protocols that can be changed according to the application and the structure of the network. Studying different routing protocols for sensor networks shows the classification of different approaches. The three main categories that have been studied are data-driven, hierarchical and location-based. The common goal of each routing schemes and routing algorithms is to achieve better operational capability and improve the lifetime of the sensor network. Two routing protocols of confrontation and guided transmittal have been compared based on throughput and network lifetime. AODV simulation (WPAN) was also implemented in two topologies and with a similar source and destination node.