An Access Middleware for Sensor Traffic Control

Since Ubiquitous Sensor Network (USN) has the feature that sensor nodes frequently send small amount of data. The access network shall support small data transmission with minimal network impact. This paper proposes an access middleware for sensor traffic processing with much less complexity and thus much higher transmission efficiency. It helps fixed access network to save the bandwidth and reduce the complexity of network protocol stack. For downstream traffic, a network address mapping approach is presented to facilitate the package transmission to the non-IP/local-IP sensor nodes. In contrast with current solution, the destination information is not encapsulated in the application layer and more bandwidth can be saved especially when large amount of sensor nodes accessing to the telecom network. Our solution has no impact on the implementation of current applications while bringing the advantages of low complexity, low cost and high transmission efficiency to the access network.