  The recent increase in number of wireless devices has been driven by the
growing markets of smart homes and the Internet of Things (IoT). As a result,
expanding and/or efficient utilization of the radio frequency (RF) spectrum is
critical to accommodate such an increase in wireless bandwidth. Alternatively,
recent free-space optical (FSO) communication technologies have demonstrated
the feasibility of building WiFO, a high capacity indoor wireless network using
the femtocell architecture. Since FSO transmission does not interfere with the
RF signals, such a system can be integrated with the current WiFi systems to
provide orders of magnitude improvement in bandwidth. A novel component of WiFO
is its ability to jointly encode bits from different flows for optimal
transmissions. In this paper, we introduce the WiFO architecture and a novel
cooperative transmission framework using location assisted coding (LAC)
technique to increase the overall wireless capacity. Specifically, achievable
rate regions for WiFO using LAC will be characterized. Both numerical and
theoretical analyses are given to validate the proposed coding schemes.
