ND SatCom SKYWAN IDU 7000, Manual

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2010-10-26 Network Design and Engineering Guide 61
General Carrier Design
TDMA Carrier Design with ’TDMA Calculator’
Parameter Name Definition
Modem data rate [kbit/s] Type in the information rate, excluding error correction bits and syn-
chronization patterns for the given channel.
Type in for each channel.
Modulation scheme Select the modulation scheme for each channel: QPSK, 8PSK.
Code rate Select the Forward Error Correction code rate for each channel
BER Select the maximum acceptable bit error rate (BER) for this channel.
Channel load enabled By default all parameters defined for channel 1 are copied to all ad-
ditional channels.
If in this box ’Yes’ is selected, the specified data from channel 1 is
used.
(1 FR Voice)
Codec x samples per packet Select the appropriate codec used for voice over SkyWAN FAD. Fac-
tor x1, x2, x3 specifies the quantity of voice packets per frame.
(1 FR Voice)
% of user data rate Type in the fraction of the user data traffic in percent used for Frame
Relay voice traffic.
2 (FR Realtime)
Average packet length [byte] Type in the average packet size in byte of Real-time Frame Relay
traffic.
(2 FR Realtime)
% of user data rate Type in the fraction of the user data traffic used for Frame Relay
Real-time traffic.
(3 FR Non Realtime)
Average packet length [byte] Type in the average packet size in byte of Non Real-time Frame Re-
lay traffic
(3 FR Non Realtime)
% of user data rate Type in the fraction of the user data traffic used for Frame Relay Non
Real-time traffic.
(4 VoIP)
Voice over IP Codec Select the appropriate codec used for voice over IP.
(4 VoIP)
Average packet length [byte] If no codec is selected in the field above, type in the average IP pack-
et length for the VoIP data.
(4 VoIP)
% of user data rate Type in the fraction of the user data traffic used for VoIP traffic.
(5 IP Realtime)
Average packet length [byte] Type in the average packet size in byte of IP Realtime traffic (exclud-
ing Voice over IP)
(5 IP Realtime)
% of user data rate Type in the fraction of the user data traffic used for IP Realtime traffic
(excluding Voice over IP).
(6 IP Non-Realtime)
Average packet length [byte]
Type in the average packet size in byte of IP Non-Realtime traffic
(6 IP Non-Realtime)
% of user data rate Type in the fraction of the user data traffic used for IP
Non-Realtime traffic.