E-DTN : A Multi-Interface Energy DTN Gateway
  To overcome the problem of unavailability of grid power in rural India, we explore the possibility of powering WSN gateways using a bicycle dynamo. The "Data mule" bicycle generates its own power to ensure a self sustainable data transfer for information dissemination to small and marginal farmers. Our multi-interface WSN gateway is equipped with Bluetooth, Wi-Fi and GPRS technologies. To achieve our goal, we exploit the DTN stack in the energy sense and introduce necessary modifications to its configuration. 
T.V Prabhakar, S.N Akshay Uttama Nambi, H.S Jamadagni
cs.NI