Comtech EF Data MIDAS 4 System and Design - Manual (Page 41)

System and Design Manual, Revision 2
Solutions 2–17
A A d d v v a a n n t t a a g g e e s s
The bandwidth-on-demand solution provided by MIDAS has many
advantages:
Reliable network: Based on field-proven technology.
Multi-Service Integrated
Platform:
MIDAS provides seamless integration with a diverse range of applications including ,
group videoconferencing, data broadcast/multicast, automatic circuit restoral (disaster
recovery), etc.
Flexible and scaleable architecture Allows optimization of network price/performance on a site-by-site basis.
Investment protection: Unlike most terrestrial solutions, a MIDAS network is easily expandable, facilitating
network reconfiguration, and providing for the addition of new applications with minimal
effort. Addition of capacity raises costs only incrementally.
Low total cost of ownership: Inexpensive hub and remote equipment, and efficient space segment utilization.
Full mesh connectivity: MIDAS supports single-hop connectivity between network sites. This avoids the
additional delays encountered in STAR networks with two-hops for remote-to-remote
circuits. It also alleviates the need for extra resources needed for double-hop circuits.
Multiple grades of service: Dynamic allocation of satellite bandwidth and power from a pool allows multiple grades
of services for applications with different requirements. MIDAS supports:
♦
Fully-configurable circuit characteristics
! Data rates (2.4 kbps to 100 Mbps)
! For Video Conferencing: 128, 256, 384, 512 and 768 kbps
! Encoding (Viterbi, Sequential, R=1/2, 2/3, 3/4, 5/6, 7/8, 8/9;
Reed-Solomon, TCM)
! Turbo Codec (BPSK 5/16, 21/44; QPSK/OQPSK/8PSK/16QAM 3/4)
• Modulation schemes (BPSK, QPSK, OQPSK, 8PSK, 16QAM)
• Terrestrial interfaces (EIA-232, EIA-422/449, V.35, 10/100 BaseT Ethernet)
• Circuit prioritization and preemption
• Dedicated bandwidth pools with optional overflow pool
Broadcast/Multicast: A MIDAS-based broadcast/multicast solution does not require additional bandwidth. Data
can be broadcast to all the traffic nodes within the network using a single carrier.
Asymmetric services: MIDAS supports asymmetric circuits, allowing for improved utilization of space segment
for applications that do not require symmetric bandwidth in each direction, such as
Internet access.
Simplified long term budgeting A MIDAS network bypasses the complex web of terrestrial networks, operators and
pricing schemes, and is not sensitive to the distance between the network sites, allowing a
better prediction of recurring communication costs over longer periods of time.
Simplified network management
and control:
The simplified architecture of the MIDAS network makes it easier to manage from a
central MIDAS site than terrestrial networks. This architecture provides direct control over
all individual network components.