Propagation measurements and models for wireless communications channels
نویسندگان
چکیده
منابع مشابه
Propagation Channel Models for Next-Generation Wireless Communications Systems
As new systems and applications are introduced for next-generation wireless systems, the propagation channels in which they operate need to be characterized. This paper discusses propagation channels for four types of next-generation systems: (i) distributed MIMO and Cooperative MultiPoint (CoMP), systems, which require the characterization of correlation between properties of links from a mobi...
متن کاملMultihop Wireless Communications Channels
................................................................................................................... III ACKNOWLEDGEMENTS............................................................................................IV TABLE OF CONTENTS................................................................................................. V LIST OF FIGURES ....................................
متن کاملSecure Communications over Wireless Channels
In this work, we present new techniques that leverage the wireless medium in facilitating secure communications in the presence of eavesdroppers. First, we consider the secure transmission of information over an ergodic fading channel with long coherence intervals. The secrecy capacity of such a system is characterized under different assumptions on the available channel state information. We t...
متن کاملExperimental Investigation of Subject-Specific On-Body Radio Propagation Channels for Body-Centric Wireless Communications
In this paper, subject-specific narrowband (2.45 GHz) and ultra-wideband (3–10.6 GHz) on-body radio propagation studies in wireless body area networks (WBANs) were performed by characterizing the path loss for eight different human subjects of different shapes and sizes. The body shapes and sizes of the test subjects used in this study are characterised as thin, medium build, fatty, shorter, av...
متن کاملAntennas and Propagation for Body Centric Wireless Communications
In this paper, on-body propagation modelling has been investigated applying various numerical computational techniques. Propagation measurements with body-worn antennas have been carried out at 2.4GHz inside and outside an anechoic chamber respectively for narrowband communication channel characterisation. Both simulation and measurement results have been also obtained at the UWB (Ultra Wide-Ba...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Communications Magazine
سال: 1995
ISSN: 0163-6804
DOI: 10.1109/35.339880