This topic describes the Signal Optimizer's default Favorite Settings for a Custom OFDM signal format.
Enter an alpha-numeric waveform file name. The name can include spaces and some special characters: _ $ & # + - [ ]. The maximum name length is 22 characters for non-Windows based instruments (e.g., N5182A, etc.), and 150 characters for Windows based instruments. (If you enter a name with more than the maximum name length, the software truncates the name to the length when you click outside of the cell.)
Enter an alpha-numeric comment of up to 32 characters. The comment resides in the file header and can include spaces and special characters.
Enter the number of frames included in the waveform.
Range: 1-300
Enter the oversampling ratio of the waveform. The Total Sample Points is automatically determined based on the oversampling ratio.
Range: 2-16
Enable or disable the mirror spectrum for the waveform.
Display the number of sample points in the waveform. This value is read-only and will be automatically updated with waveform setting change. Waveform length is directly related to the oversampling ratio value selected. (Increasing the oversampling ratio increases the total sample points.)
Display the waveform length in seconds. This value is read-only and will be automatically updated with waveform setting change.
Display the sample rate of the signal. This value is read-only and will be autotmaically calculated from symbol rate and over sampling rate.
Enter the FFT length used for OFDM transmission. The value must be even. Usually the value is a power of two.
Range: 4 - 16384
Enter the guard interval (cyclic prefix length) in percent of the symbol length.
Range: 0 - 1
Enter the number of lower guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Enter the number of upper guard subcarriers. These subcarriers will be ignored - they will not appear in any results, the modulation and resource type are undefined.
Range: 0 - FFT Length / 2
Set the signal sampling rate in Hz. All the subbands will share the same sampling rate.
Range: 1 kHz - 4 GHz (The minimum sampling rate is also determined by the total bandwidth of subbands.)
Enter the name of the resource block.
Enable or disable the selected resource block in the waveform.
Choices: On | Off
Select the mapping type of the resource block.
Choices: Pilot | Preamble | Data
Set the amplitude boost level for the modulated symbols in the resource block, in linear value. e.g. original symbol 1+i with boost level 2.5 will be 2.5+2.5i.
Range: 0.1 - 10
Enter the name of the resource block.
Enable or disable the selected resource block in the waveform.
Choices: On | Off
Select the mapping type of the resource block.
Choices: Pilot | Preamble | Data
Set the amplitude boost level for the modulated symbols in the resource block, in linear value. e.g. original symbol 1+i with boost level 2.5 will be 2.5+2.5i.
Range: 0.1 - 10
Enter the name of the resource block.
Enable or disable the selected resource block in the waveform.
Choices: On | Off
Select the mapping type of the resource block.
Choices: Pilot | Preamble | Data
Set the amplitude boost level for the modulated symbols in the resource block, in linear value. e.g. original symbol 1+i with boost level 2.5 will be 2.5+2.5i.
Range: 0.1 - 10
Select the modulation scheme used for the resource block.
Choices: BPSK | QPSK | 8PSK | 16QAM | 32QAM | 64QAM | 128QAM | 256QAM | 512QAM | 1024QAM | 2048 QAM | 4096QAM
Set an additional phase rotation in degrees to the modulated symbols in the resource block.
Range: 0 - 360
Select the multiple access scheme for current data block.
Choices: Off | SCMA | NOMA
Selects data type used as payload of the segment
Choices: PN9 | PN15 | PN23 | Pattern | From User File
Enter the payload pattern up to 128 kbits
Enter the file name to load for user-defined payload data
Enter the name of the resource block.
Enable or disable the selected resource block in the waveform.
Choices: On | Off
Select the mapping type of the resource block.
Choices: Pilot | Preamble | Data
Set the amplitude boost level for the modulated symbols in the resource block, in linear value. e.g. original symbol 1+i with boost level 2.5 will be 2.5+2.5i.
Range: 0.1 - 10
Select the modulation scheme used for the resource block.
Choices: BPSK | QPSK | 8PSK | 16QAM | 32QAM | 64QAM | 128QAM | 256QAM | 512QAM | 1024QAM | 2048 QAM | 4096QAM
Set an additional phase rotation in degrees to the modulated symbols in the resource block.
Range: 0 - 360
Select the multiple access scheme for current data block.
Choices: Off | SCMA | NOMA
Selects data type used as payload of the segment
Choices: PN9 | PN15 | PN23 | Pattern | From User File
Enter the payload pattern up to 128 kbits
Enter the file name to load for user-defined payload data.
Set the number of layers (V) for SCMA.
Range: 1-8
Set the spreading factor (K) for SCMA.
Range: 1-6
Set the codeword size (M) for SCMA.
Range: 2-64
Enable current SCMA layer
Set the data offset of the payload data.
Range: 0-1000
Selects data type used as payload of the segment.
Choices: PN9 | PN15 | PN23 | Pattern | From User File
Enter the payload pattern up to 128 kbits.
Enter the file name to load for user-defined payload data.
Select the modulation scheme used for the current Noma User.
Choices: BPSK | QPSK | 8PSK | 16QAM | 32QAM | 64QAM | 128QAM | 256QAM | 512QAM | 1024QAM | 2048 QAM | 4096QAM
Set the amplitude boost level for current NOMA user.
Range: 0.1-10
Set the data offset of the payload data.
Range: 0-1000
Selects data type used as payload of the segment.
Choices: PN9 | PN15 | PN23 | Pattern | From User File
Enter the payload pattern up to 128kbits.
Enter the file name to load for user defined payload data.
Enter the name of the resource block.
Enable or disable the selected resource block in the waveform.
Choices: On | Off
Select the mapping type of the resource block.
Choices: Pilot | Preamble | Data
Set the amplitude boost level for the modulated symbols in the resource block, in linear value. e.g. original symbol 1+i with boost level 2.5 will be 2.5+2.5i.
Range: 0.1 - 10
Select the data mode for pilot. Pilot pattern can be defined in two ways: user can input pilot IQ values directly, or specify the payload bits with a modulation scheme.
Choices: Payload Bit | IQ Values
Select the modulation scheme used for the resource block.
Choices: BPSK | QPSK | 8PSK | 16QAM | 32QAM | 64QAM | 128QAM | 256QAM | 512QAM | 1024QAM | 2048 QAM | 4096QAM
Set an additional phase rotation in degrees to the modulated symbols in the resource block.
Range: 0 - 360
Selects data type used as payload of the segment.
Choices: PN9 | PN15 | PN23 | Pattern | From User File
Enter the payload pattern up to 128kbits.
Enter the file name to load for user defind payload data.