Reliability in wireless sensor networks: A survey and challenges ahead

Ensuring energy efficient and reliable transport of data in resource constrained Wireless Sensor Networks (WSNs) is one of the primary concerns to achieve a high degree of efficiency in monitoring and control systems. The two techniques typically used in WSNs to achieve reliability are either retransmission or redundancy. Most of the existing research focuses on traditional retransmission-based reliability, where reliable transmission of data...