Location and Tracking for Ultra-WideBand In-Body Communications in Medical Applications

Abstract

Wireless Capsule Endoscopy (WCE) is a remarkable and attractive technology adopted in the biomedical sector several years ago. It provides a non-invasive wireless imaging technology for the entire gastrointestinal (GI) tract. WCE allows specialists to recognize and diagnose diseases aecting the whole GI tract. Although physicians can receive clear pictures of abnormalities in the GI tract, they have no information about their exact location. Precise localization of the detected disorders is crucial for the subsequent removal procedure by surgery. Currently, the frequency band allocated for capsule endoscopy applications is the MICS band (402-405 MHz). This band oers data rate up to 500 kbps, which is insucient to transmit high quality images. Recently, Ultrawideband (UWB) technology has been attracting attention as potential candidate for next-generation WCE systems. The advantages of UWB include simple

In-vivo Experimental Validation of the Attenuation Path Loss Model for Localization of Wireless Implanted Transmitters at 2.45 GHz

“…In-vivo experiments on anaesthetized porcine animals for path loss model validation were reported by [16] and [23] at UWB frequencies. In both cases, the log-distance PLM (1) parameters were validated.…”

“…This was highlighted by [16]. In [23], different types of antennas were used, including patches and directive antennas, as on-body receivers. The different path loss exponent values were reported accordingly (n = 8.03 and n = 7.20 for the frequencies from 3.1 GHz to 5.1 GHz).…”