Valueput Improvement of a Sensor Network with ACK-based Protocols

This paper discusses sensor network protocols in terms of the valueput, a metric that considers both the quantity and the freshness of the collected information. Considering a wireless sensor network using acknowledgment feedback, we propose two communication protocols, namely the packet retransmission protocol and the timing shift protocol, and numerically analyze their impact on the valueput. The obtained results show that the packet retransmission protocol effectively improves the throughput but not necessarily the valueput, while the timing shift protocol ensures a performance enhancement of the valueput.