Code Dissemination in Sensor Networks with MDeluge

In today´s wireless sensor networks there is a need to improve macro programming of the sensor nodes so that sensor nodes can execute various applications in a flexible manner. There is a need to contribute to macro programming of wireless sensor networks by developing new code dissemination techniques which can disseminate the code into designated sensor nodes. We present a new algorithm called multicast deluge (MDeluge) which can be used to disseminate the code image into a designated subnet of a wireless sensor network. MDeluge disseminates code in the sensor network using a tree which is formed when the sensor nodes send code request messages. Micro server keeps the code and sends it based on the requests. MDeluge disseminates binary code as well as capsules of Mate. We extend MDeluge for the sensor networks that are geographically distributed and that have moving nodes. Assuming a grid structured wireless sensor network we present an analysis of various message costs as well as the overall cost of data messages of MDeluge. Simulation of MDeluge shows that MDeluge performs better than Deluge to disseminate the code into designated sensor nodes