Abstract
Recent developments in Ultra Wide Band (UWB) technology led to the definition of a new impulse radio UWB-based IEEE standard for low data rate communications, IEEE 802.15.4a. UWB radio is however sensible to strong external interference due to the low emission levels allowed by current regulation. Given the strong similarities between impulse radio UWB and wireless optical, the combination of the two technologies can provide strong benefits and overcome the limitations of the two technologies. This work proposes a strategy that combines the two physical layer techniques by adopting a common medium access control protocol, and analyzes the performance of the solution under specific application scenarios.
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