On effectiveness of message retransmission in wireless sensor networks

Ilya Nikolsky, Kirill Furmanov
Unrealibility of radio communication is an important issue for wireless sensor networks. Message retransmission is a common remedy for data loss in such networks. Present paper is devoted to research of number of retransmissions necessary for succesful message deliver. We introduce a simple method for determinig this number based on statistical analysis of data loss.Our method was implemented in the form of protocol for data gathering from working node to the main node. The protocol was tested on a pair of nodes built on Arduino board and NRF24 transciever. Our experiments show that proposed method reduces data loss significantly.