Radio Technologies for Environment-Aware Wireless Communications
نویسندگان
چکیده
The contemporary wireless transmitter in addition to information symbols transmits also training order help the receivers estimation of by estimating channel state (CSI). In this paper, we look at existing communication technologies light environment-aware communications, which is a new concept communications that queries time-invariant CSI from local or global database, using about and receiver location. Thus, study first critical review potential today’s terrestrial systems including cellular (GSM, UMTS, LTE, NR), area networks (WLANs), sensor (WSNs), for CSI, ratio between rate variation, use time invariable environment aware communications. research reveals, early provide means narrowband only available as attenuation based on signal level measurements. By increasing frequency bandwidth estimated some form impulse response (CIR) almost all currently used radio technologies, but generally not outside systems. Also, with active technology (NR) offers possibility CIR non-active channels well, thus initiating environmentally
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ژورنال
عنوان ژورنال: WSEAS transactions on communications
سال: 2022
ISSN: ['2224-2864', '1109-2742']
DOI: https://doi.org/10.37394/23204.2022.21.30