Title :
Characterization of the on-body channel in an outdoor environment at 2.45 GHz
Author :
Cotton, Simon L. ; Scanlon, William G.
Author_Institution :
Electr. Eng. & Comput. Sci., Queen´´s Univ. of Belfast, Belfast
Abstract :
A characterization of the fading observed in an 8-node wireless body area network in an outdoor environment is presented. When the user was stationary the degree of fading for on-body links was found to be low, with estimated Nakagami m parameters Gt 1. However, when the user was mobile, depending on the body dynamics in the vicinity of the node location and transmission path length, fading significantly increased, characterized by lower m values. Level crossing rates are also presented and used to estimate the maximum Doppler frequency for each individual on-body channel.
Keywords :
Doppler shift; body area networks; fading; radio networks; Nakagami m parameters; frequency 2.45 GHz; level crossing rates; maximum Doppler frequency; on-body channel; on-body link fading; outdoor environment; transmission path length; wireless body area network; Body sensor networks; Cellular phones; Fading; Frequency estimation; Integrated circuit technology; Nakagami distribution; Performance evaluation; Probability distribution; Rayleigh channels; Statistical distributions;
Conference_Titel :
Antennas and Propagation, 2009. EuCAP 2009. 3rd European Conference on
Conference_Location :
Berlin
Print_ISBN :
978-1-4244-4753-4
Electronic_ISBN :
978-3-00-024573-2
