Investigation of wireless optical technology for communication between on-body nodes

Abstract

Abstract-Interferences in Body Area Networks (BANs) are a great challenge in order to ensure a good quality of service in health monitoring systems. BANs are disturbed by several kinds of wireless communications, as mobile cells or Wi-Fi systems. Thus the wireless optical technology could be considered as a solution to reduce the interference amount. The validity of such a solution is examined in terms of transmitted power and data rate. The novelty of this paper is that this is the first time where diffuse optical wireless technology is considered to achieve "on body" communication, using the multiple reflections of optical beams in the patient room.

A Secure Optical Body Area Network Based on Free Space Optics and Time-Delayed 2D-Spectral/Spatial Optical CDMA

“…OBAN is a relatively recent research field; therefore, abundant published work is not yet available. Works related to OBAN published over the past decade include [2,4,6,8,[10][11][12][13][14][15][16][17]. Mirza et al proposed secure OBAN architectures based on spectral amplitude coding-OCDMA (SAC-OCDMA) [2] and optical chaos [8].…”

“…Haddad et al proposed FSO channel characterization and performance analysis with patient mobility [6], an intra-OBAN channel modelling and multiple access scheme [12], and channel modelling between sensors and a coordinator [13]. Chevalier et al proposed channel modelling for a diffused optical channel between on-body sensors [14] and a star OBAN topology based on a diffused optical channel and spreading codes [15]. Hasan et al proposed uplink transmission between medical sensors and a coordinator based on OCDMA [16] and OFDMA [17].…”

Integrating ultra-wideband and free space optical communication for realizing a secure and high-throughput body area network architecture based on optical code division multiple access

“…OBAN is a recent research direction, therefore considerable research work has not been done over it so far. There are some pioneer research contributions [2,3,8,9] which mainly cover mathematical aspects of OBANs including FSO channel modeling employed in OBANs, error probability, blocking effects and coding schemes. It is pertinent to mention that the field of OBAN is almost un-explored.…”

Performance evaluation of wireless optical communication for mobile body area network scenario with blocking effects

“…Thus, to avoid the increase of RF links in the patient environment, alternative solutions such as wireless optical communication (WOC) are investigated. For indoor applications, WOCs have been recently an active field of research thanks to their immunity toward RF ones, but also for the increase in the high data rates demand and the safe data transfer they provide [7][8][9][10][11][12][13][14][15][16][17][18]. In particular, for mobile health monitoring applications, previous studies have explored the performance of WOC between a central unit placed on a patient and a base station fixed in the indoor environment [13,15].…”

“…Consequently, we study a non‐LOS scheme exploiting diffuse optical reflections over the environment. We have already investigated a static monitoring scenario where a sensor placed on a patient lying on a bed transmits data to the BAN coordinator by using diffuse optical transmission [14].…”