Quality of Service in Heterogeneous Wireless Sensor Networks

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Executive Summary

Wireless sensor networks are networks consisting of many tiny and often resource impoverished sensor nodes communicating through a low-power and short-range radio interface. The authors are used for monitoring, building automation, tracking and multimedia services such as voice and video. For many years, the main research focus was on energy efficiency, while Quality of Service (QoS) parameters such as delay, reliability and throughput were often ignored. However, in the next-generation heterogeneous wireless sensor networks, making a trade-off between energy efficiency and delivering the right QoS guarantees becomes a very challenging task.

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