Abstract
The advent of fully interactive environments within Smart Cities and Smart Regions requires the use of multiple wireless systems. In the case of user-device interaction, which finds multiple applications such as Ambient Assisted Living, Intelligent Transportation Systems or Smart Grids, among others, large amount of transceivers are employed in order to achieve anytime, anyplace and any device connectivity. The resulting combination of heterogeneous wireless network exhibits fundamental limitations derived from Coverage/Capacity relations, as a function of required Quality of Service parameters, required bit rate, energy restrictions and adaptive modulation and coding schemes. In this context, inherent transceiver density poses challenges in overall system operation, given by multiple node operation which increases overall interference levels. In this work, a deterministic based analysis applied to variable density wireless sensor network operation within complex indoor scenarios is presented, as a function of topological node distribution. The extensive analysis derives interference characterizations, both for conventional transceivers as well as wearables, which provide relevant information in terms of individual node configuration as well as complete network layout.
Highlights
The evolution towards Smart Cities and by extension, Smart Regions, is driving the need of increasing user-environment interactivity levels
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Summary
The evolution towards Smart Cities and by extension, Smart Regions, is driving the need of increasing user-environment interactivity levels In this sense, Context Aware environments are foreseen as key elements in the control and regulation of the multiple systems which sustain Smart. Digital transmission systems employ adaptive modulation and coding schemes, coupled to other functionalities, such as time/space diversity or channel multiplexing, leading to time dependent communication channels This later case requires the analysis of coverage/capacity relations, in order to guarantee adequate service values for overall communications (and for the end systems within the Context Aware scenarios). Different network densities and node distributions will be considered, as well as static (i.e., infrastructure) and variable (i.e., wearable) nodes within the scenario, in order to evaluate variations of interference spectral power densities and degradation within performance metrics
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