TY - GEN
T1 - Received signal characteristics of outdoor body-to-body communications channels at 2.45 GHz
AU - Cotton, Simon L.
AU - McKernan, Adrian
AU - Scanlon, William G.
PY - 2011
Y1 - 2011
N2 - In this paper we conduct a number of experiments to assess the impact of typical human body movements on the signal characteristics of outdoor body-to-body communications channels using flexible patch antennas. A modified log-distance path loss model which accounts for body shadowing and signal fading due to small movements is used to model the measured data. For line of sight channels, in which both ends of the body-to-body link are stationary, the path loss exponent is close to that for free space, although the received signal is noticeably affected by involuntary or physiological-related movements of both persons. When one person moves to obstruct the direct signal path between nodes, attenuation by the person's body can be as great as 40 dB, with even greater variation observed due to fading. The effects of movements such as rotation, tilt, walking in line of sight and non-line of sight on body-to-body communications channels are also investigated in this study.
AB - In this paper we conduct a number of experiments to assess the impact of typical human body movements on the signal characteristics of outdoor body-to-body communications channels using flexible patch antennas. A modified log-distance path loss model which accounts for body shadowing and signal fading due to small movements is used to model the measured data. For line of sight channels, in which both ends of the body-to-body link are stationary, the path loss exponent is close to that for free space, although the received signal is noticeably affected by involuntary or physiological-related movements of both persons. When one person moves to obstruct the direct signal path between nodes, attenuation by the person's body can be as great as 40 dB, with even greater variation observed due to fading. The effects of movements such as rotation, tilt, walking in line of sight and non-line of sight on body-to-body communications channels are also investigated in this study.
UR - https://www.scopus.com/pages/publications/84856160802
U2 - 10.1109/LAPC.2011.6114147
DO - 10.1109/LAPC.2011.6114147
M3 - Conference proceeding
AN - SCOPUS:84856160802
SN - 9781457710155
T3 - LAPC 2011 - 2011 Loughborough Antennas and Propagation Conference
BT - LAPC 2011 - 2011 Loughborough Antennas and Propagation Conference
T2 - 7th Loughborough Antennas and Propagation Conference, LAPC 2011
Y2 - 14 November 2011 through 15 November 2011
ER -