An On-Body Channel Model for UWB Body Area Communications for Various Postures

Wang, Q.; Tayamachi, T.; Kimura, Ippei; Wang, J.

doi:10.1109/tap.2009.2014526

Cited by 112 publications

(60 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In [7,12,[16][17][18][19], the effect of different antennas or polarizations on the UWB links are investigated. References [20,21] contain examination of body shapes and postures on the UWB on-body communications and in [22] the energy absorption of the UWB signal by the human body is found out.…”

Section: Introductionmentioning

confidence: 99%

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Kumpuniemi¹,

Hämäläinen²,

Yazdandoost³

et al. 2016

PIER B

View full text Add to dashboard Cite

Abstract-A categorized radio channel modeling for wireless ultra-wideband on-body body area networks is discussed. Measurements in an anechoic chamber at fourteen antenna locations are conducted in a 2-8 GHz band. The dipole and double loop antenna types are used. Six link classes are formed based on the antenna spots on the torso, head or limb. The limb-limb and the head-limb links have the lowest and highest path losses, respectively. The head-limb links have the shortest channel impulse responses (CIRs) and limb-limb links the longest ones. The CIR amplitudes follow the inverse Gaussian distribution. The tap indexes and the total excess delays are modeled with the negative binomial distribution. In most cases, the CIRs decay faster for the dipole. Otherwise no major differences exist between the antennas.

show abstract

Section: Introductionmentioning

confidence: 99%

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Kumpuniemi¹,

Hämäläinen²,

Yazdandoost³

et al. 2016

PIER B

View full text Add to dashboard Cite

show abstract

“…This paper presents a study of on-body channels during walking and comparison is made with other investigations, [1][2][3][4][5][6][7][8][9][10]. In [1][2][3][4] BAN studies were based on measurements on humans while [5] relied solely on EM simulations on a phantom.…”

Section: Introductionmentioning

confidence: 99%

A Study of Factors Affecting Wrist Channel Characteristics for Walking Postures Using Motion Capture

Swaisaenyakorn

Kelly

Batchelor

2014

IEEE Trans. Antennas Propagat.

View full text Add to dashboard Cite

“…The expressions in square brackets in (6)- (8) are organized individually with the functions corresponding to observation point and the functions of source points as written in (9) and (10). Field formulations of E S (21) for observation point inner cylinder is attained basically by altering the variables associated with region 1 in braces in (6)- (8) into the variables in region 2.…”

Section: Circular-cylinder Structurementioning

confidence: 99%

“…As a result of new communication networks that operate in body-centric environments, body area networks (BANs) have been introduced; with a great number of the papers being published on the subject. The current research for BANs can be separated into three main groups: those which focus on the development of antennas for implant or wearable devices [5][6][7]; those which research the channel model with respect to body postures or consider the effect of multi-path propagations by other objects in a restricted interior space [8][9][10]; and finally those that examine the propagation characteristics in the vicinity of the human body or inside the human body through the specific absorption rate (SAR) [11][12][13]. However, most of papers are limited in the explanation of scattering waves because of the evaluation method by the FDTD method or physical experiments that provide total field results only, although analytical solutions for scattering problem in the inhomogeneous environment between the free space and the human body may be useful for the design of antennas considering the characteristics changed by the human body or for the effectual estimation of communication channels in BANs.…”

Section: Introductionmentioning

confidence: 99%

Quantitative Estimation of Scattering Waves in Cylinder-Body Model for Body Area Networks: Comparison of Analyses With Unifrom Cylinder- And Slab-Body Models

Seo¹,

Saito²,

Takahashi³

et al. 2010

PIER B

View full text Add to dashboard Cite

Abstract-This paper estimates separately the components of scattering waves generated in cylinder-body model for body area networks.For the evaluation, scattering field formulations in relation to uniform cylinder-and slab-body models are provided, and the reliability of the analyses is testified by the comparison with results computed by the finite-difference time-domain (FDTD) method. Creeping waves, cylinder leaky waves, and cylinder guided waves, which are created only in cylindrical structure, are extracted quantitatively by contrasting the scattering waves that are calculated with the two body models. In addition to the extracted waves, other components of scattering waves such as reflected waves, transmitted waves, surface waves, leaky waves, and guided waves also are examined. From evaluations with various operating frequencies and thicknesses of the body model, it is confirmed that reflected waves have the most influence on electrical characteristics of a source. Moreover creeping waves and cylinder leaky waves are generally dominant at the opposite side of the cylinder when a source is located near cylinder surface. Furthermore, the existence of creeping waves with low attenuation in the vicinity of cylinder surface is demonstrated by electric field intensities calculated by varying the observation point along cylinder axis.

show abstract

An On-Body Channel Model for UWB Body Area Communications for Various Postures

Cited by 112 publications

References 11 publications

Categorized Uwb on-Body Radio Channel Modeling for Wbans

Categorized Uwb on-Body Radio Channel Modeling for Wbans

A Study of Factors Affecting Wrist Channel Characteristics for Walking Postures Using Motion Capture

Quantitative Estimation of Scattering Waves in Cylinder-Body Model for Body Area Networks: Comparison of Analyses With Unifrom Cylinder- And Slab-Body Models

Contact Info

Product

Resources

About