scholarly journals Early Obstacle Detection and Avoidance for All to All Traffic Pattern in Wireless Sensor Networks

2009 ◽  
pp. 102-115 ◽  
Author(s):  
Florian Huc ◽  
Aubin Jarry ◽  
Pierre Leone ◽  
Luminita Moraru ◽  
Sotiris Nikoletseas ◽  
...  
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Obstacle Detection ◽  
Wireless Sensor ◽  
Traffic Pattern

Mitigation of Hot Spots on Wireless Sensor Networks

2012 ◽  
pp. 206-222
Author(s):  
Fernando Gielow ◽  
Michele Nogueira ◽  
Aldri Santos
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Hot Spots ◽  
Hot Spot ◽  
Sensor Nodes ◽  
Wireless Sensor ◽  
Future Research ◽  
Traffic Pattern ◽  
Research Perspectives

The use of Wireless Sensor Networks (WSNs) has increased over the past years, supporting applications such as environmental monitoring, security systems, and multimedia streaming. These networks are characterized by a many-to-one traffic pattern. Hence, sensor nodes near to the sink have higher energy consumption, being prone to earlier deaths and failures. Those areas overloaded with high traffic rates are called Hot Spots, and their emergence creates and expands energy holes that compromise network lifetime and data delivery rates, and may result in disconnected areas. This chapter provides an overview of techniques to mitigate Hot Spot impacts, such as the uneven distribution of sensors, routes that balance energy consumption, sink mobility, and the use of unequal clustering. Further, it depicts the approach for achieving mitigation of sink centered Hot Spots. Finally, this chapter presents conclusions and future research perspectives.

scholarly journals Save Energy in Wireless Sensor Networks Routing Using Fuzzy Approach and Biogeography Based Optimization

2017 ◽  
Vol 12 (2) ◽  
pp. 3167-3178
Author(s):  
Yasser Kareem AlRikabi
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Network Lifetime ◽  
Search Algorithm ◽  
Wireless Sensor ◽  
Fuzzy Approach ◽  
Traffic Pattern ◽  
Balancing Energy ◽  
Save Energy

Extending the lifetime of the energy constrained wireless sensor networks is a crucial challenge in wireless sensor networks (WSNs) research. When designing a WSN infrastructure Resource limitations have to be taken into account. The inherent problem in WSNs is unbalanced energy consumption, characterized by multi hop routing and a many-to-one traffic pattern. This uneven energy dissipation can significantly reduce network lifetime. This paper proposes a new routing method for WSNs to extend network lifetime using a combination of a fuzzy approach and Biogeography Based Optimization (BBO) algorithm which is capable of finding the optimal routing path form the source to the destination by favoring some of routing criteria and balancing among them to prolong the network lifetime. To demonstrate the effectiveness of the proposed method in terms of balancing energy consumption and maximization of network lifetime, we compare our approach with the BBO search algorithm and fuzzy approach using the same routing criteria. Simulation results demonstrate that the network lifetime achieved by the proposed method could be increased by nearly 25% more than that obtained by the BBO algorithm and by nearly 20% more than that obtained by the fuzzy approach.

scholarly journals Balancing Energy Consumption in Wireless Sensor Networks Using Biogeography Based Optimization Algorithm and Fuzzy Approach

2016 ◽  
Vol 15 (3) ◽  
pp. 6596-6607
Author(s):  
Basim Abood Yasir ◽  
Yu Li ◽  
Aliaa Hussien ◽  
Desheng Wang
Keyword(s):  
Wireless Sensor Networks ◽  
Energy Consumption ◽  
Sensor Networks ◽  
Network Lifetime ◽  
Search Algorithm ◽  
Wireless Sensor ◽  
Fuzzy Approach ◽  
Traffic Pattern ◽  
Balancing Energy ◽  
Routing Method

Extending the lifetime of the energy constrained wireless sensor networks is a crucial challenge in wireless sensor networks (WSNs) research. When designing a WSN infrastructure Resource limitations have to be taken into account. The inherent problem in WSNs is unbalanced energy consumption, characterized by multi hop routing and a many-to-one traffic pattern. This uneven energy dissipation can significantly reduce network lifetime. This paper proposes a new routing method for WSNs to extend network lifetime using a combination of a fuzzy approach and Biogeography Based Optimization (BBO) algorithm.  Determine an optimal routing path from the source to the destination by favoring the highest remaining battery power, and the lowest distance (minimum number of hops) to the sink. To demonstrate the effectiveness of the proposed method in terms of balancing energy consumption and maximization of network lifetime, we compare our approach with the BBO search algorithm and fuzzy approach using the same routing criteria. Simulation results demonstrate that the network lifetime is significantly increased by employing the proposed routing method.

Principles of Wireless Sensor Networks

2012 ◽  
Author(s):  
Mohammad S. Obaidat ◽  
Sudip Misra
Keyword(s):  
Wireless Sensor Networks ◽  
Sensor Networks ◽  
Wireless Sensor
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