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While cellular and WLAN (Wireless Local Area Networks) at low frequencies (1-5 GHz) constantly struggle with the quasi-saturation of spectrum, the EHF band (30-300 GHz) has huge swathes of band available at no cost. The recently allocated 71-76 GHz and 81-86 GHz bands provide an opportunity for Line Of Sight (LOS) links for directional point-to-point ”last mile” links. This work focuses on the design...
Friis transmission equation combined with Finite Difference in Time Domain (FDTD) method has been used to carry out investigation on Specific Absorption Rate (SAR) inside the human head model exposed to a 100 Watt GSM Base Station Antenna (BSA) at GSM-900 band. Maximum local SAR (MLSAR) has been calculated at 925 MHz, keeping distance between head and BSA in the range of 0.5 m to 5.0 m. The human...
Multihop wireless networking has traditionally been viewed in the context of ad-hoc and peer-to-peer networks. We consider the application of multihop networking in wide area cellular systems and evaluate potential capacity enhancements. A cellular system with relays that store and forward information from the base station to the terminals on the downlink is considered. With geographical routing for...
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