KanseiGenie Dependable Distributed and Networked Systems

KanseiGenie: The Next Generation Sensor Testbed for At-Scale Experiments

I. Overview

Testbed

Kansei provides a testbed infrastructure to conduct experiments on various wireless platforms, including 802.11, 802.15.4, and 900 MHz Chipcon CC1000 radios, as well as diverse sensor node platforms, including XSM, Telosb, iMote2 and Stargates. Currently, Kansei is consisted of 96 Kansei Nodes. Each Kansei node comprises of one XSM, 4 Telosbs, and one iMote2, all of which are attached to a Stargate. The Stargates are connected using both wired and wireless ethernet. The Kansei testbed is now part of the Global Environment for Network Innovation (GENI) proejct. Kansei testbed is now being federated with NetEYE testbed in Wayne State University.
The Kansei project is headed by Anish Arora.







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Testbed Status Summary
XSM/Stargates Available => 97
XSM/Stargates Down => 17
XSM/Stargates Busy => 96
TelosBs Available => 384
TelosBs Down => 20
TelosBs Busy => 0
Experiments Currently Running => 0
Experiments Pending => 0
Experiments Completed in last 24 hours => 0
Experiments Completed in past week => 4










II. Anatomy of a Kansei Node

The following two figures shows the logical and physical composistion of a Kansei node.


Fig 1. Logical View Fig 2. One Kansei Node

The Backbone Network Node

The stargates serve as the local gateway for each Kansei node. This allows the Kansei interface to directly program and communicate with each attached sensor ndoe over a wired connection. The Stargate is a 32-bit class device purchased from CrossBow running Stargate Release 7.2 from Intel Research. 802.11b Wireless Networking cards (SMC2532W-B) are installed on each stargate with requisite software (HostAP), external antennas, and device housings. Kansei makes use of the EmStar stargate development environment.


The Sensor Nodes
The following is a summary table for major physical resource provided by XSM, telosb, and iMote2 motes respectively.

Table 1. Sensor Node Datasheet
Type CPU Radio Program Mem RAM Flash Installed Sensors
XSM ATmega128L CC1000 128K 4K 512K magnetometer, 4 PIR, photocell
Telosb MSP430 CC2420 48K 256K 1024K N/A
iMote2 Intel PXA271 CC2420 32M 256K 32M N/A

III. Experiment

Kansei allows one to run user defined experiments on any subset of nodes through web service calls as well as this web interface. As a matter of fact, this web interface is developed on top of a set of web services comforming to GENI requirements. For experiments requiring a more interesting environment than a mostly empty warehouse, one can provide data collected elsewhere and inject it into the system.