| 摘要 |
A method of optimizing a link budget analysis comprising performing a first LBA based on a target modulation and coding pair (MODCOD), the MODCOD having a symbol energy to noise density ratio (Es/No), a target setting of a power amplifier, or a target antenna size, determining an excess margin and increasing or decreasing a maximum available MODCOD accordingly, iteratively performing a second LBA, calculating a ratio of allocated bandwidth to PEB and adjusting at least one of the MODCOD, amplifier power, and antenna size, summing a contribution to a final ratio of allocated bandwidth to PEB of the plurality of communications links, accessing a look up table and selecting a new MODCOD or adjusting the amplifier size or antenna size is based on the ratio of allocated bandwidth to PEB and altering one or more transmission or receiving parameters to apply the optimal MODCOD, amplifier size, or antenna size. |
| 主权项 |
1. A method of optimizing a link budget analysis (LBA) for a communications link within a communications system having a plurality of communications links comprising:
performing, using a processor, a first LBA based on a target modulation and coding pair (MODCOD) that is selected based on one or more transmission or receiving link parameters, the MODCOD having at least one of a predetermined symbol energy to noise density ratio (Es/No), a target setting of a power amplifier, and a target antenna size; determining, by the processor, an excess margin from the first LBA and increasing or decreasing a maximum available MODCOD based on whether the excess margin has a positive or a negative value; performing, by the processor, a second LBA using the increased or decreased maximum MODCOD and iteratively repeating increasing or decreasing the maximum available MODCOD and performing a subsequent LBA using the increased or decreased maximum available MODCOD; calculating, by the processor a ratio of allocated bandwidth to a power equivalent bandwidth (PEB) and adjusting at least one of the MODCOD, amplifier power, and antenna size based on the calculated ratio; determining, by the processor, whether additional energy is present in the communications link by summing a contribution to a final ratio of allocated bandwidth to PEB of the communications system made by each of the plurality of communications links; accessing a look up table (LUT) to determine an optimal MODCOD for the communications link wherein at least one of the following actions is performed by the processor:
if the sum is a positive value, selecting a MODCOD having a higher Es/No; orif the sum is a negative value, selecting a MODCOD having a lower Es/No; oradjusting the amplifier size or antenna size is based on the ratio of allocated bandwidth to PEB; and altering one or more transmission or receiving parameters to apply the selected optimal MODCOD, amplifier size, or antenna size. |
