MobiCom 2009 Poster: Towards Reliable Data Delivery in Solar-powered Wireless Sensor Networks

摘要

Because of the error-prone nature of wireless communication, a spectrum of solutions has been proposed at every layer of the network protocol stack on how to reliably deliver the sensory data in wireless sensor networks. Among them, a class of approaches [1, 2] is to proactively add redundancy by using simple duplication or advanced coding schemes (e.g., erasure coding [3, 4]), and send multiple copies of a message simultaneously to mitigate single-message losses. Due to the limited energy in traditional battery-powered sensor networks, exploiting any level of redundancy will inevitably reduce the network lifetime. However, this dilemma could be relieved in wireless sensor networks with renewable energy sources.