JUPITER™ System Bandwidth Efficiency

It is well understood by satellite network operators that “bandwidth efficiency” for a VSAT system is a critical element in achieving profitability, as higher efficiency will increase the amount of traffic supported over a given amount of satellite capacity. Not always understood, on the other hand, is that spectral efficiency alone, measured in bits per hertz, is only one factor in determining overall IP network efficiency or net data throughput for a given satellite bandwidth. As illustrated in Figure 1, each of the seven layers of the entire OSI model for networking offers the potential to implement efficiency gains, beyond just the spectral efficiency techniques applied at the physical layer. With this in mind, Hughes has implemented efficiencies across all layers of the OSI model to yield the highest possible overall IP network efficiency.