Design Issues for Sensor Network RF Receivers

Author(s):  
Ahmed Youssef ◽  
James Haslett ◽  
Sebastian Magierowski
Author(s):  
Manisha R. Dhage ◽  
Srikanth Vemuru

<p class="Default">WSN has important applications such as habitat monitoring, structural health monitoring, target tracking in military and many more. This has evolved due to availability of sensors that are cheaper and intelligent but these are having battery support. So, one of the major issues in WSN is maximization of network life. Heterogeneous WSNs have the potential to improve network lifetime and also provide higher quality networking and system services than the homogeneous WSN. Routing is the main concern of energy consumption in WSN. Previous research shows that performance of the network can be improve significantly using protocol of hierarchical HWSN. However, the appropriateness of a particular routing protocol mainly depends on the capabilities of the nodes and on the application requirements. This study presents different aspects of Heterogeneous Wireless Sensor network and design issues for routing in heterogeneous environment. Different perspectives from different authors regarding energy efficiency based on resource heterogeneity for heterogeneous wireless sensor networks have been presented.</p>


2021 ◽  
Author(s):  
Roshani Talmale ◽  
Nirupama Bhat

Abstract Wireless Sensor Network (WSN) have transformed over recent years with incredible development in design of smart real time applications. In spite of countless potential, it poses numerous design issues like fault tolerant communication, low latency, scalability, transmission media and coverage problems. One of the foremost design issues of WSN is to detect the run time fault because it is unaware of internal operation of the sensor node. As a result, valuable sensed information is unable to reach its destination and performance start degrading throughout the routing period of the network. To address this issue, the proposed mechanism design a novel Pre-fault detection mechanism based on fuzzy rule based mechanism for multilevel transmission in distributed sensor networks. Many researchers have been focused on fault detection mechanisms without considering the dynamic behavior status of sensor node. In this proposed mechanism the Fuzzy decision rule set is identified to take routing decisions based on fuzzy fault count status. This mechanism helps to recognize the fault in advance and a routing decision has been taken in order to save energy as well as minimize delay. On the basis of node fault status data transmission rate is finalized in order to avoid more energy depletion. The experimented simulations results prove the accuracy of the proposed mechanism. The results demonstrate that the proposed mechanism performed well on judgment evaluation metrics such as energy dissipation ratio, packet drop rate and communication delay.


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