An Inequality on Source-to-Sink Average BER and Its Application on Wireless Sensor Networks

This letter drives a novel inequality expression on source-to-sink average BER (S2S-ABER) for multi-hop communication in a network. The obtained expression is less complex and can be implemented on computationally constraint devices, such as sensor nodes. Moreover, it has been applied to wireless sensor networks to determine the SNR limitations such that S2S-ABER does not exceed a threshold value. This information is helpful in deciding the optimum route between source and sink for reliable data dissemination. Although each route can undergo multiple combinations of channel distributions, a typical case with two different scenarios has been considered in this letter for simplicity.