Cost effective WSN Network Monitoring and Control using Modified SNMP

We have successfully designed an efficient Simple Network Management Protocol (SNMP) for the monitoring, management and control of low cost Wireless Sensor Network (WSN). SNMP is a very popular protocol for network management in an IP based network. But since its packet fields are very much variable so it requires Type Length Value (TLV) encoding before transmission, which increases its size considerably and makes it quite impossible to use in a WSN network where nodes are mostly resource restricted. Moreover, SNMP is mostly used for retrieving management information from the network but not for initiating actions on network nodes. In this present investigation, we have presented a light weight SNMP protocol without a need of TLV encoding for not only managing the WSN network but also capable of controlling the network nodes. The proposed protocol has been successfully tested in a star configuration based WSN network nodes comprise on cost effective 8 bit microcontrollers and HC-05 Bluetooth modules. Keywords— Bluetooth network, microcontrollers, Simple Network Management Protocol (SNMP), WSN Network Management, Wireless Sensor Network.