Wireless Sparse Testbed

From OLPC
Revision as of 12:13, 17 October 2008 by 201.29.206.57 (talk)
Jump to navigation Jump to search

This page is dedicated to the TestBed installed at Universidade Federal Fluminense, Brazil.

Professor Luiz Magalhães and a group of students of Laboratório Midiacom, with the participation of Ricardo Carrano, from OLPC, built this testbed that is designed to study the behavior of a sparse mesh network, and answer the following questions:

  • Is a sparse network feasible? What are the practical distances and what can be expected in term of throughput and latency?
  • How does the shared Internet mechanisms (aka MPP) behave and what happens when you have multiple gateways?
  • What is the effect of mobility on a sparse network?
  • What is a good adaptive behavior to multicast/broadcast transmission rates?
  • What is the efficiency of the current multicast implementation?
  • How OLPC-Mesh compares to the current 802.11s implementation on the Linux Kernel?

The testbed is currently composed of 12 B2-1 prototypes, running the 8.2 distro in a non-gui runlevel.

Sparse testbed.jpg

Testbed Journal

Oct, 16 - More nodes are being added to connect the cloud, currently there are 3 disconnected sectors