Design of priority schemes in CSMA/CD local area networks
ANSS '87 Proceedings of the 20th annual symposium on Simulation
Wireless sensor networks: a survey
Computer Networks: The International Journal of Computer and Telecommunications Networking
The nesC language: A holistic approach to networked embedded systems
PLDI '03 Proceedings of the ACM SIGPLAN 2003 conference on Programming language design and implementation
TOSSIM: accurate and scalable simulation of entire TinyOS applications
Proceedings of the 1st international conference on Embedded networked sensor systems
Geometric Broadcast Protocol for Sensor and Actor Networks
AINA '05 Proceedings of the 19th International Conference on Advanced Information Networking and Applications - Volume 1
A dynamic operating system for sensor nodes
Proceedings of the 3rd international conference on Mobile systems, applications, and services
Evaluation of Reliable Data Transmission Protocol in Wireless Sensor-Actuator Network
AINAW '07 Proceedings of the 21st International Conference on Advanced Information Networking and Applications Workshops - Volume 02
A TTF-Based Programming Model and a Support Kernel Running on a Communicating Sensor Platform
ISADS '07 Proceedings of the Eighth International Symposium on Autonomous Decentralized Systems
Three Dimensional Broadcast Protocol forWireless Networks
ICPP '07 Proceedings of the 2007 International Conference on Parallel Processing
Sensor-actuator communication protocols in wireless networks
NBiS'07 Proceedings of the 1st international conference on Network-based information systems
Recovery of flash memories for reliable mobile storages
Mobile Information Systems
MANET performance for source and destination moving scenarios considering OLSR and AODV protocols
Mobile Information Systems
RFID-based human behavior modeling and anomaly detection for elderly care
Mobile Information Systems
MANET performance for source and destination moving scenarios considering OLSR and AODV protocols
Mobile Information Systems
RFID-based human behavior modeling and anomaly detection for elderly care
Mobile Information Systems
Journal of Mobile Multimedia
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A wireless sensor-actuator network (WSAN) is composed of sensor modes and actuator modes which are interconnected in wireless networks. A sensor node collects information on the physical world and sends a sensed value in a wireless network. Another sensor node forwards the sensed value to deliver to an actuator node. A sensor node can deliver messages with sensed values to only nearby nodes due to weak radio. Messages are forwarded by sensor nodes to an actuator node by a type of flooding protocol. A sensor mode senses an event and sends a message with the sensed value. In addition, on receipt of a message with a sensed value from another sensor mode, a sensor node forwards the sensed value. Messages transmitted by sensor nodes might be lost due to noise and collisions. In this paper, we discuss a redundant data transmission (RT) protocol to reliably and efficiently deliver sensed values sensed by sensor nodes to an actuator node. Here, a sensor node sends a message with not only its sensed value but also sensed values received from other sensor nodes. The more number of sensed values are included in a message, the more frequently the message is lost. Each message carries so many number of sensed values that the message loss ratio is not increased. Even if a message with a sensed value v is lost in the wireless network, an actuator node can receive the sensed value v from a message sent by another sensor node. Thus, each sensed value is redundantly carried in multiple messages. The redundancy of a sensed value is in nature increased since the sensed value is broadcast. In order to reduce the redundancy of sensed value, we take a strategy that the farther sensor nodes from an actuator node forward the fewer number of sensed values. We evaluate the RT protocol in terms of loss ratio, redundancy, and delay time of a sensed value. We show that about 80% of sensed values can be delivered to an actuator node even if 95% of messages are lost due to noise and collision.