Bandwidth scaling of fading properties of on-body wireless channel in Body Area Networks

Sipal, Vit; Gaetano, Domenico; McEvoy, Patrick; Ammann, Max J.

doi:10.1109/iccomm.2014.6866660

Cited by 2 publications

(6 citation statements)

References 21 publications

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“…These results further confirm previous works [7]- [9], which pointed out that the waist/hip may not be the most suitable location for hubs in future WBANs because other locations allow the use of directive antennas which reduce the impact of fading and improve the overall path-gain characteristics.…”

Section: Discussionsupporting

confidence: 90%

“…Therefore, it seems more realistic that the first proper WBANs with several nodes will appear in specialized fields such as the military, professional athletes, or law enforcement [9]. For these applications, the hub position does not have to be on the waist/hip.…”

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

“…In fact, other locations offer additional benefits. For instance, in terms of propagation, it may be advantageous to locate the hub in the extremities of the body (head or foot) because the entire body can be covered by directional antennas [7]- [9]. Integration in the footwear enables extension of battery life by harvesting energy from piezoelectric elements integrated in the footwear [9].…”

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

“…For instance, in terms of propagation, it may be advantageous to locate the hub in the extremities of the body (head or foot) because the entire body can be covered by directional antennas [7]- [9]. Integration in the footwear enables extension of battery life by harvesting energy from piezoelectric elements integrated in the footwear [9]. Similarly, it may be advantageous to co-locate the hub and the video camera, located on the head, to spare the on-body link for the video feed which will require more data-rate than other sensors.…”

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

“…The push-up and squat exercises were selected to simulate a fitness scenario and compared to more traditional standing/walking scenarios [2]- [9], they result in a larger scale of relative limb motion with respect to the torso.…”

Section: Measurement Campaignmentioning

confidence: 99%

See 4 more Smart Citations

Impact of Hub Location on the Performance of Wireless Body Area Networks for Fitness Applications

Sipal¹,

Gaetano²,

McEvoy³

et al. 2015

Antennas Wirel. Propag. Lett.

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Abstract-This letter compares the propagation properties of Wireless Body Area Networks for three different locations (head, foot and waist) of the hub/internet gateway on the human body. The wireless channels between the hubs and four nodes (chest, back, and upper arms) are measured for frequencies between 5 and 7 GHz on a female and a male subject performing push-ups and squats. A framework using path gain and fade depth metrics in spider plots is used for cumulative performance description. The results show that the best overall performance is for a hub located on the temple and the worst overall performance is achieved for a hub on the waist. These results are expected to stimulate further research into the optimum hub placement on the human body.

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Section: Discussionsupporting

confidence: 90%

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

Section: Case For Alternative Hub Locationsmentioning

confidence: 99%

Section: Measurement Campaignmentioning

confidence: 99%

See 3 more Smart Citations

Impact of Hub Location on the Performance of Wireless Body Area Networks for Fitness Applications

Sipal¹,

Gaetano²,

McEvoy³

et al. 2015

Antennas Wirel. Propag. Lett.

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Bandwidth Dependence of the Propagation Channel in Circular Metallic BAN Environments

Ferreira¹,

Cardoso²,

Ambroziak

et al. 2023

IEEE Access

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In this paper, the bandwidth dependence of the propagation channel for Body Area Networks (BANs) in circular metallic environments is addressed and models are proposed to evaluate the appropriate short-term fading margins that should be considered as a function of the system bandwidth. The deployment of BANs in metallic indoor environments, such as ships, factories, warehouses and other similar environments, involves additional challenges compared to other indoor environments due to the specific propagation effects in this type of environments (i.e., with strong reflections). No studies of this kind and for this type of environment can be found in literature, giving the motivation for this work. Bandwidth dependent values of delay spread are also presented and discussed. It is observed that for a system bandwidth up to 100 MHz the fading depth is composed of three main stages, with the transitions between these stages being associated with the system ability to discriminate arriving rays at the receiver. Average values of fading depth are 16.4, 13.2 and 11.0 dB for stages 1, 2 and 3, respectively, the difference between consecutive stages ranging between 2.2 to 3.2 dB. For a system bandwidth larger than 100 MHz, the fading depth decreases with an increasing system bandwidth, with an average decay rate close to 3 dB per 100 MHz bandwidth, being about 2 dB for system bandwidths above 400 MHz.INDEX TERMS Body area networks, metallic structures, propagation channel, fading-depth, short-term fading margin, bandwidth dependence.

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Bandwidth scaling of fading properties of on-body wireless channel in Body Area Networks

Cited by 2 publications

References 21 publications

Impact of Hub Location on the Performance of Wireless Body Area Networks for Fitness Applications

Impact of Hub Location on the Performance of Wireless Body Area Networks for Fitness Applications

Bandwidth Dependence of the Propagation Channel in Circular Metallic BAN Environments

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