Analysis of the throughput capacity and delay in a wireless sensor network with multiple sinks
Hajar Barani, Ahmad Golmohammadi, Hongbin Huang, Satyajayant Misra · 2016
In Wireless Sensor Network (WSN) applications such as environment monitoring, building monitoring, etc., sensor nodes collect data and send it to the base stations or sinks for analysis. As the networks grow in scale, it necessitates using multiple sinks in the network. In here, throughput capacity and the average delay of WSN with multiple sinks, which are two main quantity of interest, has been investigated. To the best of our knowledge, such network has not been studied, yet. Assuming a cell-partitioned network and using a two-hop relay algorithm, we find that there is an optimal node density to achieve throughput capacity. We show that the optimal delay/throughput ratio in a multi-hop multi-sink WSN is O(N) (N is the number of nodes in the WSN).