Title :
The influence of the wearable antenna type on the on-body channel modeling at 2.45 GHz
Author :
Michalopoulou, A. ; Zervos, T. ; Peppas, K. ; Lazarakis, F. ; Alexandridis, A.A. ; Dangakis, K. ; Kaklamani, Dimitra I.
Author_Institution :
Inst. of Inf. & Telecommun., Nat. Center for Sci. Res. “Demokritos”, Athens, Greece
Abstract :
This paper discusses the impact of the antenna type on the on-body channel modeling, based on a systematic measurement campaign at 2.45 GHz. Two different microstrip antennas were used for the measurements, a coaxial fed rectangular patch antenna, that shields the human body from back radiation and a coplanar patch antenna, which radiates towards the human body. An extensive statistical analysis was performed and the empirical CDFs were compared to eight well-known fading distributions. Among the distributions tested only lognormal, gamma and α-μ models provided best fit to the data. It was observed that the channel modeling depends on the antenna type used. Moreover, deviations of up to 3.5 dB were reported between the envelope CDFs of the two antennas.
Keywords :
fading channels; microstrip antennas; statistical analysis; wearable antennas; wireless channels; back radiation; coaxial fed rectangular patch antenna; coplanar patch antenna; extensive statistical analysis; fading distributions; frequency 2.45 GHz; gain 3.5 dB; microstrip antennas; onbody channel modeling; systematic measurement campaign; wearable antenna type; Antenna measurements; Antenna radiation patterns; Hidden Markov models; Microstrip antennas; Receiving antennas; α-μ; Channel modeling; body area networks (BAN); fading channels; gamma; lognormal; microstrip antenna; on-body channels; wearable antenna;
Conference_Titel :
Antennas and Propagation (EuCAP), 2013 7th European Conference on
Conference_Location :
Gothenburg
Print_ISBN :
978-1-4673-2187-7
Electronic_ISBN :
978-88-907018-1-8
