Download SkyPilot Network Overview

Introduction to SkyPilot Networks
November 2005
Carrier-Class Broadband Wireless
SkyPilot Network Architecture
SkyConnector
SkyConnectors
Internet
SkyConnector
SkyConnector
SkyGateway
SkyConnector
SkyGateway
SkyExtender
DualBand
SkyExtender
SkyExtender
DualBand
SkyConnector
SkyExtender
SkyExtender
DualBand
Public Safety
SkyConnectors
Mobile VoIP
Mobile User
2.4 GHz Wireless Connection
SkyExtender
DualBand
5 GHz Wireless Connection
Hardwire Connection (Ethernet)
Carrier-Class Broadband Wireless
2
SkyPilot System Components
SkyGateway™
SkyExtender™
DualBand (new)
SkyExtender
SkyConnector™
Product class
Base station
Mesh backhaul + AP
Mesh backhaul + CPE
CPE
Functionality
Internet-to-wireless mesh
gateway; long range;
redundancy; scalability
Extends mesh with long
range 5 GHz links;
separate subscriber radio
(2.4 GHz)
Extends mesh with long
range 5 GHz links;
integrates CPE connectivity
Low-cost CPE connects to
5 GHz mesh network
Wi-Fi
Ethernet
Ethernet
$1,799
$1,199
$399
Subscriber access
US list price
$3,499
Carrier-Class Broadband Wireless
3
Technology Differentiation
SkyPilot’s Synchronous Mesh Protocol
Superior RF Management
Sophisticated Mesh Networking
Synchronous Bandwidth Scheduling
Deterministic QoS Performance
Self-Interference Mitigation
Efficient Spectral Reuse
Efficient Spatial Segmentation
Automatic Node Discovery
Automatic Topology Configuration
Optimized Best-Path Routing
Dynamic Rerouting
Scalable Capacity and Load Balancing
Failover Routing
SkyPilot’s Advanced Antenna Array
High-Gain, High-Power,
Sectorized Antennas
Multi-Antenna Array
Long Range Coverage, High Modulation
360° Coverage
Benefits of
Point-to-Multipoint
Benefits of
Mesh Networking
Carrier-Class Broadband Wireless
4
Advanced Antenna Array
 Patent-Pending Antenna Array
• 8 sectorized antennas, each a 45° beam (360° total coverage)
• “Big ears” – 18 dBi / antenna
 Benefits from Sectorization
• Special exemption from FCC point-to-multipoint regulations
• “Loud mouth” – focused directional bursts up to 44.5 dBm / 28.2 W
EIRP (instead of 36 dBm / 4 W EIRP FCC pt-mpt limitation)
• Provides high-gain, improved penetration, and greater reach (up to
10 miles / 16 km between nodes)
• NLOS via OFDM’s intrinsic multipath capabilities
Carrier-Class Broadband Wireless
5
Synchronous Mesh Protocol
 Synchronous Bandwidth Allocation Protocol
• GPS chips provide common clock for synchronization
• Deterministic WiMAX-like Time-Division Duplex protocol
 Transmissions Coordinated across Entire Network
• Interference Mitigation
• Spectral Reuse – increases capacity
• Traffic Prioritization – enables low-latency applications like VoIP
 Optimized Mesh Routing Protocol
•
•
•
•
Auto-Discovery, Self-Provisioning, Self-Configuring, Self-Optimizing
Best-Path Routing Algorithm – maximizes network capacity
Fault Tolerance with Self-Healing Failover
Load Balancing and Traffic Segmentation
Carrier-Class Broadband Wireless
6
Mesh Network Configuration
Active link
Standby link
SkyGateway
SkyExtender
18
SkyConnector
18
36
24
18
36
36
9
18
36
36
9
Internet
36
Carrier-Class Broadband Wireless
 Long range and high
modulation due to
sectorized links
 Automatic node
discovery
 Optimized routes
based on modulation
and hops to gateway
 Alternate routes
available in case of
changes in link
capacity or failures
7
Transmission Coordination
Active link
Transmission time slot 1
Transmission time slot 2
Transmission time slot 3
Transmission time slot 4
Standby link
SkyGateway
10
SkyExtender
3
11
SkyConnector
4 A
1
3 4 A
3
F 9 1011 B
H
2
9 1011 B
12
9
4
13
1213 B 141213 B 14
E
8
G1 H 1 2 G1 H 1 2
A
B D G1 E
5
F 8 G1 D
7
Internet
G1 A B C
5 A B C 5
C
6
7 6 G1
 Sectorized
antennas
When omnidirectional
allow
simultaneous
nodes
talk, all other
E
communications
nodes in range must
15
 SkyPilot’s
synchronized
stop transmitting
and
protocol
listen coordinates
16
efficient transmissions
B
151617
B
181516
D
 Coordinated
17
transmissions mitigates
self-interference
18
 Omnidirectional mesh
systems can’t do this
14
7 6 G1
Carrier-Class Broadband Wireless
8
Optimized, Dynamic Rerouting
Active link
Standby link
SkyGateway
SkyExtender
18
SkyConnector
36
F
H
18
18
24
36
E
36
A
Modulation drops
from 36 to 9Mbps,
causing rerouting
9
9
B
18
36
9
D
 Links monitored
constantly to optimize
capacity and
throughput
 Changes in link
capacity or status
handled by reoptimizing routes
36
Internet
G1
C
Carrier-Class Broadband Wireless
9
Adding Capacity & Redundancy
Active link
J
24
Standby link
I
SkyGateway
18
G2
SkyExtender
18
SkyConnector
36
18
F
H
18
24
K
18
24
36
E
36
A
36
9
B
18
36
9
D
36
Internet
G1
36
12
 Adding gateways
immediately adds
network capacity and
redundancy
 Each gateway
provides up to 20
Mbps
 Multiple gateways can
be used to scale the
network
C
Carrier-Class Broadband Wireless
10
Failover Capabilities
Active link
J
24
Standby link
I
SkyGateway
18
G2
SkyExtender
18
SkyConnector
36
18
F
H
18
24
K
18
24
36
E
36
A
9
B
36
12
18
9
 In case of gateway
failure, the network
dynamically reroutes
 Self-healing
maximizes network
uptime
D
Internet
G1
C
Carrier-Class Broadband Wireless
11
Thank You
Carrier-Class Broadband Wireless
12