A New Reliable Data Delivery Protocol in Wireless Sensor Network
Mohammad Pajouhesh, Amir Massoud Bidgoli, Mohammad Hossein Yektaie · 2012
Wireless sensor networks (WSN) have generated tremendous interest among researchers these years because of their potential usage in a wide variety of applications. Sensor nodes are inexpensive portable devices with limited processing power and energy resources. Sensor nodes can be used to collect information from the environment, locally process this data and transmit the sensed data back to the user. This paper proposes a new reliable data delivery protocol for point to point data delivery in WSNs. The proposed protocol is designed to provide 100% reliability when possible and also minimizing overhead and network delay. The design of this protocol includes three components. The new protocol considers a Negative Acknowledgement (NACK) based hop by hop loss detection and recovery pattern by end to end sequence numbers. For solving the single-last packet problem, a hybrid Acknowledgement (ACK)-Negative Acknowledgement (NACK) pattern is introduced where an ACK based approach associates the NACK based approach to solve the single-last packet problem. The proposed protocol also has a new queue management pattern that gives priority to new data. The performance of the new protocol is tested. Experimental results show that the new protocol performs well under various system and protocol parameter settings.