New High-Rate Uwb Scheme for Wban-Based Healthcare Systems

Abstract

Abstract-Given the emphasis on increasing wireless network usage for healthcare application, e.g., Wireless Body Area Network (WBAN), the need for high-rate physical layer has become a genuine concern from research and industrial community. The use of the Ultra-Wideband (UWB) is looking especially bright for such systems given its lower energy consumption and performances towards frequency-selective channels. However, the Multi-Band-OFDM-based UWB technique has some inherent limitations as loss in spectral efficiency due to the use of Cyclic-Prefix (CP). In this paper, a new physical layer scheme for high-rate wireless body area networks based on MB-OFDM with Offset Quadrature Amplitude Modulation (OQAM) modulation is presented. The proposed MB-OFDM/OQAM can achieve high spectral and power efficiency than conventional MB-OFDM system. Moreover, the use of the CP Interval in the conventional MBOFDM removes efficiently the Inter-Symbols Interferences (ISI) but remains ineffective towards the Inter-Carriers Interferences (ICI) caused by the channel frequency offset (FO). The performances evaluation of the proposed technique will be carried-out in realistic UWB-WBANs channels with various scenarios, which will be also presented and studied herein.

Categorized Uwb on-Body Radio Channel Modeling for Wbans

“…2. Three spots (1-3) lay on the head, six at the limbs (6,7,9,(11)(12)(13) and the rest were on the torso. The sites 4, 6, 8, 10 and 12 exist on the side of the torso, arm or leg whereas the remaining spots are situated on their frontal parts.…”

“…It has been investigated both in offbody [5][6][7] and in-body cases [8]. Perhaps the majority of the published papers are related to the various aspects of on-body situations [9][10][11][12]. For instance, in [7,[13][14][15] research related to UWB onbody radio channels are reported.…”

Scalability Validation of the Posting Access Method through UPPAAL-SMC Model-Checker

“…The WBANs [1] [2] [3] [4] [5] are designed to support a wide range of medical applications, such as asthma, cardiovascular disease, and cancer detection. They have enormous potential to revolutionize the future of healthcare by diagnosing many deadly diseases and providing remote and real-time monitoring of patients' health status without any restrictions, which improve their quality of life and reduce their costs of hospitalization.…”