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We propose “mode switch”, an adaptive load-sensitive solution that supports both an energy-efficient operation mode for transmitting normal sensor data and an QoS-aware low-latency mode for high priority emergency messages. Typically, sensor networks are considered to operate efficiently w.r.t. energy consumption. A good example is the IEEE 802.15.4 protocol, which has mainly been designed for this...
Sensor networks with a number of wirelessly inter-connected devices have proven useful for many applications in diverse domains. The challenges of scale and resource constraints posed by this system have led to development of novel network protocols and services, but their focus has been on traditional metrics of quality of service of network data transport. Arguing that a holistic view of these systems...
Phase array radars are designed to tight tolerances in order to meet exact design constraints placed upon the characteristics of their main beam. A numerical and statistical approach will be utilized to investigate the variation of the following key parameters; gain degradation, side-lobe perturbation, beam width variation and beam pointing error (BPE). Their subsequent effect on normal operation...
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