Abstract
This paper presents a solution for priority-based data transmission in heterogeneous wireless sensor networks. Considering the requirements of each event separately while delivering a data simultaneously is a challenging task in the sensor networks. Therefore, we present the PriTLP protocol for prioritizing the information at various data processing units in the multi-hop topology network. It brings a distributed approach for taking decisions on behalf of the sink node which fastens the data processing, reduces the communication delays, and prolongs the network life. It performs two operations, namely data prioritization and scheduling; and identifying the congestion degree of the network. The reported work is implemented and validated over the RF TestBed by managing the buffer level. It shows high packet delivery ratio, greater throughput, and fewer communication delays of high priority-based traffic flow over regular flows.
Highlights
Recent development has shown the significant improvement in an industrial automation [1,2,3], residential projects, and smart city developments using the low rate heterogeneous wireless sensor technology (WSNs)
The communication delays, transmission errors, packet loss due to link failures, multipath delay due to improper scheduling, and interference due to real-time physical obstacles are the factors which hinder the performance of sensor networks
In a multi-event sensor network, handling the data simultaneously is a challenging task; we focus on this issue and developed PriTLP transmission protocol
Summary
Recent development has shown the significant improvement in an industrial automation [1,2,3], residential projects, and smart city developments using the low rate heterogeneous wireless sensor technology (WSNs). The reason for taking this problem for consideration is to deliver the data of sensitive applications first over the delay tolerant applications in heterogeneous WSNs. In a multi-event sensor network, handling the data simultaneously is a challenging task; we focus on this issue and developed PriTLP transmission protocol. To generate the multi-event sensor network, we equipped each sensor node with four sensing devices It helps to generate the large amount of traffic in small size real time TestBed. The paper contributions are summarized as follows. It is developed over the real TestBed i.e. on the nRF24L01 Nordic controller with ioCare development board using ATmega 328 microcontroller It is validated by performing the different experimentation in different scenarios with a variable time interval and hop count.
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