Performance Analysis of Multiple Access m-CAP for Optical-Based Intra-WBAN Links

Optical-based wireless body area networks (WBANs) are a promising solution for remote monitoring of vital signs in radio-frequency sensitive environments such as healthcare facilities. When dealing with a large number of sensors coexisting within the same vicinity, multiple access (MA) solutions are necessary to manage the simultaneous access to the medium. In this paper, we investigate the use of MA multi-band carrierless amplitude and phase (m-CAP) for intra-WBAN links. Using the outage probability criterion, we evaluate the performance of such a solution while accounting for realistic statistical channel models. Furthermore, we study the impact of system parameters such as bandwidth, number of sub-bands, and roll-off factor on the link performance.