This paper describes a distributed wireless network architecture for remote diagnosis and monitoring. Wind energy conversion system (WECS) is considered as the target application, where windmills are grouped into small clusters communicating with each other for the purpose of distributed diagnosis. The evaluation of this network is simulated to support effective communication needs required for fault detection and as a result to send an alarm or caution message to the remote monitoring station. However, as the sensitivity of application increases, strict requirements on availability, robustness, reliability and performance of network resources must be satisfied in order to meet industrial standards.