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We present a novel family of optical codes to be used in intra-satellite optical wireless networks. They are random optical codes (ROCs). This family is specially adapted for optical networks where the number of channels varies, ever large, low bit rate requirements, energy limitations and packed data are present. For example sensor networks have these requirements. The implementation in an intra-spacecraft telecommand and telemeasurement (TC/TM) optical wireless network is also described. Besides we propose a method for the comparison between ROCs and generalized optical orthogonal codes (OOCs). A decision between both family based on the performance for a particular set of parameters is given by the method. An application of the method is also provided. We have compared the families in the intra-spacecraft optical wireless network.

This work presents the application of optical orthogonal codes (OOC) for intra-spacecraft communications within a sensor network with a large number of terminals. In particular, a novel family of optical codes named random optical codes is introduced for the target application. These codes allow a simple optimization of the length and weight of the code while maintaining a controlled probability of error and a low duty cycle. Also, due to a straightforward generation process they can be adjusted almost in real-time to adapt to new conditions like including new channels. This flexibility makes this family a good candidate for systems with strict restrictions over this parameters.