Abstract

Free Space Optical (FSO) communication has received tremendous attention in recent years as an alternative approach to overcome the limited RF spectrum problem for wireless communication. Proposed FSO communication systems transmit information by modulating light. Thus, FSO transmissions do not interfere with existing RF transmissions, and can provide substantial capacity gain. In this paper, we briefly introduce WiFO, a hybrid indoor wireless communication system designed to substantially increase wireless capacity. We also describe a new channel model used for multi-user FSO communication. The main contributions of this work are (1) characterizing the multiuser achievable rate region for the new channel given the side information via a constructive embedded coding technique and (2) providing analytical result for maximizing the sum rate of users.

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