Experimental Implementation of Optical-CDMA for Medical Extra-WBAN Links

We consider the use of optical wireless technology based on infrared signals for multi-user wireless body-area networks (WBANs) in medical applications. For the case of uplink extra-WBAN signal transmission, we propose a simple optical code-division multiple access (O-CDMA) signaling scheme to manage the multiple-access channel. We experimentally evaluate the link performance in terms of bit- and frame-error-rates by implementing the proposed scheme on the programmable logic, and show the efficiency of this approach in dealing with multi-user interference, as well as its low-complexity.

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