The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
Observability of 60 GHz wireless body area networks is being investigated, in the context of the maximum outdoor detection range for such a network. An off-body channel within a scattering environment has been characterized. By decomposing the detection channel into a free-space channel and a body-local environment channel, an observability estimation model is proposed based on the measured data.
The performance of a dipole antenna is evaluated for different distances from the human body by using the Method of Moments (MoM) in the 2.45 ISM band. This is done by considering the antenna in close vicinity to a homogeneous lossy cylinder and the calculated total radiated field around the body is validated through comparison with CST Microwave Studio simulation results. Perspectives are discussed...
The performance of wireless sensor nodes operating in the 2.40-2.48 GHz ISM frequency band is presented over each of the 16 different channels. It is shown that the response of individual carrier frequency depends on both the antenna and the overall system. On-body channel characterization is performed at various points on the human body torso in an anechoic chamber using a pair of wireless sensor...
This paper presents system-level modelling of potential multiband orthogonal frequency division multiplexed ultra wideband (UWB) system. System performance is measured using bit error rate (BER) and signal-to-noise ratio. The conducted system analysis demonstrated that the BER is equal to or less than 0.1%, for 75% of stable (i.e. transmitter is on waist) and 61% of unstable transmitter locations...
Research in antennas and propagation for body centric wireless communications continues to grow, in response to increasing demands for body area networks (BANs) for healthcare, defence and personal communications and entertainment. This paper will briefly review recent international work, and then report on advances in three UK BAN research centres, Birmingham, Queen Mary and Queens Belfast. The demand...
This paper presents the characterization of the path loss in ultrawide band body area networks. A Measurement campaign was performed in the anechoic chamber and in an indoor environment for comparison. The propagation along the front part of the body was analyzed, and the effect of the body movements on the signal strength was investigated. The results demonstrated that the normal distribution provides...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.