MF-TDMA architecture supports any network
Full-Mesh, Star (hub/spoke), or Hybrid (combination
of mesh and star)
Spread spectrum waveform allows mixed-node
networks using ultra-small antennas and on
the move terminals coexisting with larger fixed
No large, costly VSAT central hub required
DVB-S2 Integrated Receiver/Decoder (IRD)
supports high-speed downloads from any data
Operates on loop-back, split-beam or crossstrapped
transponders (C, X, Ku, Ka band)
Mesh full-duplex IP throughput speeds over
Advanced QoS and traffic prioritization options
New, improved Network Management System
(NMS) provides enhanced MF-TDMA burst time
plan allocation and map displays
Local and geographic redundancy of the
ViaSat LinkWayS2™ Broadband VSAT System
ViaSat continues to offer the most innovative satellite
networking products with its LinkWayS2 system, the most
advanced full mesh hubless multi-frequency time-division
multiple access (MF-TDMA) system. Delivering true network
connectivity, the LinkWayS2 system seamlessly integrates with
your Internet Protocol (IP) based applications, automatically
routing your mission critical data via a single satellite hop
network using any network topology — mesh, star or hybrid.
Unique in the industry, the full-mesh LinkWayS2 MF-TDMA
modem has independent fast-hopping transmit and receive
paths. The transmit modulator and receive demodulator
can each tune on a burst-to-burst basis, independently and
automatically, across a 800 MHz frequency range spanning
multiple transponders, carrier rates, carrier coding rates, and
carrier modulations. This capability allows the most efficient
allocation of bandwidth on the network carriers, on any
available timeslot on any available carrier frequency, for the
most flexible and frequency-agile system available. LinkWayS2
modems can be used over any commercial satellite on C, X,
Ku, or Ka band using loop-back, split-beam or cross-strapped
Expanding on the capabilities of the successful LINKWAY®
2100 modem, LinkWayS2 modems are more efficient than
ever before. The DVB-RCS turbo coding and short preambles
provide quasi-error free communications with minimal
carrier power requirements and maximum efficiency. The
newly added 8PSK modulation feature provides dramatically
improved spectral efficiency, while the inclusion of BPSK
modulation offers support for ultra-small, sub 1-meter antennas
for fixed, at-the-halt or on-the-move communications.
LinkWayS2 modems offer a unique extended carrier rate range
from 312.5 ksps up to an industry-leading 10 Msps. This broad
rate range enables system operators to select the optimal
carrier rate for their particular network traffic profile allowing
greater flexibility for both high-throughput applications, such
as streaming video or large media file transfers, as well as lowlatency
applications, such as voice and video teleconference.
Enterprise Connectivity Enable IP voice, video,
or data applications across the enterprise,
providing integration of terrestrial and satellite
networks and platforms.
Cellular Backhaul Quickly deploy new cell sites
to enable connectivity in even the most remote
areas of the world.
Emergency Response Networks Connect and
help move logistical, rescue and first responder
resources in emergencies and disaster areas.
Air Traffic Control Rely on full-mesh
communications for voice, radar and messaging
traffic between ATC sites.
Homeland Security Networks Transmit data
live into border control and checkpoint data
systems with transportable terminals.
Through a software configuration, a LINKWAY® 2100
compatible operational mode can be enabled, providing full
interoperability with fielded LINKWAY 2100 series networks.
Changing configuration from the legacy operational LINKWAY
2100 mode to the more efficient LinkWayS2 mode requires only
an over-the-air software download to remote modems and can
be done from a centrally managed location.
INTEGRATED DVB-S2 RECEIVER/DECODER
A DVB-S2 Integrated Receiver/Decoder (IRD) with EN 302 307 compliant
coding, provides bandwidth-efficient broadband download capability
simultaneous with MF-TDMA operation. Higher throughputs at lower Eb/
No enable broadband connections into reduced size terminals. Additionally
LinkWayS2 modems can utilize this capability with any standard EN 302
307 DVB-S2 modulator and IP encapsulator.
LinkWayS2 based terminals are controlled by a full-featured Network
Control Center (NCC) management station. The 1 rack-unit NCC server
connects to any standard LinkWayS2 modem and manages TDMA network
timing, synchronization, terminal acquisition, network configuration, and
bandwidth management. The NCC also acts as the Network Management
System (NMS) server, a client-server system with a https-based graphical
interface. With this approach, a PC-based remote NMS client can securely
access the NCC server from anywhere in the world (with appropriate
security restrictions). NMS user windows provide network status, network
station maps, system configuration, alarm status, connection set-up,
accounting, link performance, and diagnostic commands. Local and
geographic redundancy ensures reliable network operation and provides
automatic network recovery.
MESH MOBILITY (ON THE MOVE)
LinkWay mesh networks support both ATH and OTM terminals. When
combined with GPS, terminal acquisition, synchronization and timing
are automatic even when the terminal is in motion. The new LinkWay
waveform enables FCC/ITU compliant operation of the LinkWayS2 modems,
using ultra-small antennas typically used in OTM platforms.