We consider a picocell system that implements multiple input multiple output (MIMO) using cell bonding with one antenna per node. We show that this picocell system can initially have 1/2 or fewer access points (APs) with similar voice over IP coverage as a conventional system, yet can gracefully grow to the capacity of conventional systems with the same number of APs. Although the coverage is somewhat lower for MIMO (both 2X2 and 4X4), we show that through the use of dynamic antenna/node selection the picocell system with cell bonding can have similar coverage to conventional systems.

We consider a picocell system that implements multiple input multiple output (MIMO) using cell bonding with one antenna per node. We show that this picocell system can initially have 1/2 or fewer access points (APs) with similar voice over IP coverage as a conventional system, yet can gracefully grow to the capacity of conventional systems with the same number of APs. Although the coverage is somewhat lower for MIMO (both 2times2 and 4times4), we show that through the use of dynamic antenna/node selection the picocell system with cell bonding can have similar coverage to conventional systems.

We address the problem of how to exploit optics for ultrascale High Performance Computing interconnect fabrics. We show that for high port counts these fabrics require multistage topologies regardless of whether electronic or optical switch components are used. Also, per stage electronic buffers remain indispensable for maintaining throughput, lossless-ness and packet sequence. Although the notion of true all-optical packet switching is not yet viable, we show that appropriate use of optical switching technology offers power and scaling advantages that can be leveraged economically, and propose a hybrid opto-electronic HPC interconnect fabric architecture that combines the strength of electronics in processing and storing information with the strength of optics in switching and transporting high bandwidths. Using Semiconductor Optical Amplifier technology, we are building a prototype demonstrator switch that we believe solves all the technical challenges. Having reached this threshold now enables commercialization of this technology, which we are currently pursuing.