Test bed for Remote Environmental Monitoring in Northwestern China

In this paper we design the heterogeneous network instead of homogeneous one to reduce the load of single node and as a result it could eliminate probability of wireless sensor network (WSN) overload. For wide feasibility in China northwestern area we choose the Global System for Mobile Communications (GSM) to transmit monitoring data to server and implement a protocol stack like TCP to get a reliable short message service(SMS) from local telecom provider. Finally we show some test result of this test bed and discuss about the next step.