CR-GENI – Why CRKIT Framework ?

1. BASEBAND PROCESSOR RADIO MODULE: upto 4 channels XILINX V5 SXT95 JTAG FLEXIBLE TIMING GPS or external reference SFP: 3.75 Gbps x 4 15 Gbps DATA CONVERSION PCIe INTERFACE 30 Gbps 2.4 GHz IF STAGE GigE INTERFACE 1000 Mbps 5.2 GHz IF STAGE USB 2.0 480 Mbps WIDEBAND CONVERT LVDS: 622 Mbps x 20 12.4 Gbps RF POWER AMPS / LNA ANTENNA SWITCHES CR-GENI – Why CRKIT Framework ? A. Dutta, D. Saha,, P. Maddala, K. Le, P. Wolniansky, D. Grunwald, I. Seskar RTS • Focus on Creativity, not Engineering Complexity : • Concentrate on what matters the most : Creativity, Innovations • Split Radio into Static and Dynamic domains : • Static - Open-sourced System-on-Chip (complex engineering problem) • Dynamic – Swappable Communication APPs (creative problem) • CRKIT Framework = make real-time and wideband radio a viable solution for large scale experiments. • CRKIT Transport Layers • ETH : Ethernet physical layer, GbE rate. • IP (Fast Path) : HW based implementation, subset of IP/UDP functions. reserved for Data traffic. • IP (Slow Path) : SW based implementation, supports TCP/IP. reserved for Control traffic. • VRT : VITA Radio Transport Layer (optional) INNOVATIONCYCLE Hi, I am Bob ! Feedback Dynamic APPs Idea Focus on APP Development NOT complete Radio Algorithms + Models Live Experiments • SoC Features • Access to lower level resources thru APIs • VITA radio transport protocol for radio control • Networking capable node • Support up to four different dynamic APPs • Library of Open-sourced Communication APPs • Implemented in FPGA technologies : Xilinx V5LX50, V5LX110, V5SX95 • Static Framework utilization level < 25% for V5LX50, < 15% for V5SX95, even less for newer technologies. • Transparent to underlying FPGA technology. • Can be ported to future HW platforms and newer FPGA technologies. Static CRKIT SoC Abstract lower level design complexities from Users • Bob is unhappy…WHY ? • Requires expertise in : HW, SW, RF, Comm. , Networking… • Can we help Bob ? YES ! Build Radio • Radio Features • Up to four full duplex RF modules • Tuning range : 100-7500 MHz • 25 MHz baseband • 12-bit ADC sampling rate of 64 MSps on I/Q • 12-bit DAC update rate of 200MSps GENI CRKIT Hardware • EXPERIMENTERS WELCOME • Orbit sandbox (SB6) available for experimentation Live system runs