User's Manual

SKYPILOT NETWORK CONFIDENTIAL AND PROPRIETARY

Page

SKYPILOT NETWORK CONFIDENTIAL AND PROPRIETARY

2 Network Architecture

The GW1000 and SD1000 combine to create a robust, high capacity wireless network.

All links within the network are established and optimized automatically. A highly

efficient routing algorithm selects the best path for user traffic and heals around any

network failures.

2.1 Link Establishment

A Gateway is installed and configured for a given channel within the UNII band - see

Section 4.1.1 for details of frequency selection and configuration. This Gateway will

signal it’s presence through the use of a periodic beacon message transmitted on the

configured frequency utilizing a single antenna. When a Seed/CPE is installed it listens

for this network beacon message. When a beacon is received, the Seed/CPE shall respond

and attempt to establishment a link.

Once a link is successfully created, the two units will automatically complete link

optimization. This ensures the selection of optimal antenna, power setting and

modulation rate. The SkyPilot units support modulation rates of 6-54Mbps and the

highest, reliable rate shall be selected through the exchange of test packets. Note that

established links are continually monitored and periodically optimized.

2.2 Routing

Once a Seed/CPE has connected to the network it shall select a route to the Gateway. The

automatic route selection considers the number and modulation rate(s) of the constituent

links. Once a route is selected, all user traffic shall be forwarded via this path.

Rerouting shall occur rapidly in the face of a link loss. Rerouting will also occur if a

lower cost route is consistently available.