Survey on Fault Categorization on Wireless Sensor Network by Using Data Validation and Round Trip Delay and Paths
Keywords:
Faulty sensor node, round trip delay, round trip paths, WSNs, data validation.Abstract
In recent years, the applications of the wireless sensors networks (WSN) have increased tremendously due to its huge potential of connecting the physical world and the virtual world. Also, advancement in Microelectronic Fabrication Technology (MFT) decreases the cost of manufacturing portable wireless sensor nodes. It is a trend to deploy large number of wireless portable sensors in the WSNs to have an increased quality of service (QoS). The QoS of WSNs is hugely affected by the failure of the sensor nodes. The portability of failures in sensor nodes is directly proportional to increase in the number of sensors. In order to keep up better QoS under failure conditions, identifying and removing such faults are important. Faulty sensor node is recognized by estimating the round trip delay (RTD) time of discrete round trip paths and comparing them with threshold value. The RTD time results derived in hardware and software implementations are almost equal, justifying the real time applicability of the investigated method is used. In proposed approach we have added one more technique to identify the faulty node with RTD and RTP which is data verification techniques. In this schema Sink node will verify the data to ensure the defect is present in sensor node or not. This paper focus on the survey of fault categorization system established by different authors, in this paper, we discussed the different techniques implemented fault categorization in wireless network system.
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