Coexistence concept for the implementation of LDR/HDR WPAN multimode devices

This paper defines the guidelines for the implementation of multimodal devices with Frequency Modulation Ultra Wide Band (FM-UWB) and Multi Carrier Spread Spectrum (MC-SS) air interfaces (AIs) for short range Low Data Rate (LDR) and High Data Rate (HDR) connections. Several novel scenarios have been proposed which require the simultaneous exploitation of LDR and HDR Wireless Personal Area Network (WPAN) connections. The possibility of performance degradation when one AI is transmitting and the other one is receiving is discussed. It has been found that MC-SS transmission can impact the FM-UWB reception. Furthermore, an overview of collaborative and non-collaborative coexistence mechanisms is provided. Finally, the architecture that allows the efficient exploitation of the two AIs in one device is proposed.