ALLOCATED COMMUNICATION CHANNELS (SPN.SCPC)

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Isatel company takes following requirements into account while organizing of trunk satellite channels (SCPC): 

RELIABILITY REQUIREMENTS  

  • Possibility of redundancy schemes construction 1:1
    • At channel level – redundancy of transmitter-receiver
    • At network level – satellite modem redundancy /router standby
    • “Last miles” redundancy, dynamic switching to redundant “last mile" in emergency  

LOW PRICE OF SATELLITE FREQUENCY AND ENERGY RESOURCE WITHIN C-BAND AND KU-BAND RANGES   

  • Order of frequency and energy satellite resource with Intersputnik International Organization of Space Communications
  • Detailed preliminary calculation of line energy  

HIGH EFFEICIENCY OF FREQUENCY AND ENERGY RESOURSE USE  

  • Use of equipment with applications
    • CnC mode
    • use of high efficiency methods of modulation and coding (8-PSK, 16-QAM, LDPC&BCH)
  • use of geostationary spacecraft with high energy performance  

WEAK DEPENDENCE ON WEATHER CONDITIONS  

  • ACM mode – adaptive code modulation
  • Channel speed can be changed dynamically depending on receive levels – the primary purpose is “to hold” the channel when weather conditions are deteriorated even by way of the temporary capacity reduction (FEC dynamic change) 

CHANNEL CAPACITY SCALING in THE case of PEAK LOADING IN BUSY HOURS 

  • burstable for TDM/MF-TDMA mode

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