Parameter Summary; Table 2-6 Summary 'Data Output Per Frequency Channel' Parameter - ND SatCom SKYWAN IDU 7000 Manual

2.6.4.1

Parameter Summary

Parameter Name
User data rate [kbit/s]
Symbol rate [kBaud]
Eb/N0 [dB]
Es/N0 [dB]
Frequency bandwidth [kHz]
Data slot length [base slots]
Time slots per TDMA frame
Length ref. slot [time slots]
Length rqst. frame [time slots]
Data slots per TDMA frame
Data rate per slot ass.
[bit/s]
Length gross container [byte]
Efficiency [bit/symbol]
Efficiency [bit/s/Hz]
Maximum number of stream
slots
Table 2-6 Summary 'Data Output Per Frequency Channel' Parameter
2010-10-26
Definition
Displays the user data rate for each channel.
Displays the symbol rate for each channel.
Displays required Eb/N0 for the selected modulation scheme, FEC
code rate and gross container size for the given channel. Eb/N0 is
defined as the ratio of Energy per Bit (Eb) to the Spectral Noise Den-
sity (N0).
Displays required Es/N0 for the selected modulation scheme, FEC
code rate and gross container size for the given channel. Es/N0 is
defined as the ratio of Energy per Symbol (Es) to the Spectral Noise
Density (N0).
Displays the calculated frequency bandwidth required on this chan-
nel.
Frequency bandwidth = (1+ roll-off-factor) x symbol rate.
Displays how many base slots are contained in one data slot for this
channel.
Displays how many time slots are contained in one TDMA frame for
this channel.
Attention: If the given number exceeds the allowed maximum (see
note above) the solution is invalid.
Displays how many data slots are configured as reference slot for
this channel.
Displays how many data slots are configured for all request bursts for
this channel.
Displays how many data slots are available within one TDMA frame
for this channel.
Displays the datarate per slot (including SLL framing and fragment
descriptors) for each assigned data slot in this channel.
Displays the length of the gross container of this channel.
Displays the efficiency of this channel :
Efficiency = user data rate / symbol rate
Displays the efficiency of this channel:
Efficiency = user data rate / frequency bandwidth
Displays the maximum quantity of data slots which can be allocated
as stream slots for this channel.
Network Design and Engineering Guide
General Carrier Design
TDMA Carrier Design with 'TDMA Calculator'
65