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Design Tradeoffs for Different Preamble Types.
| M-Sequences (Bipolar) | CAZAC (Complex Sequences) | |
|---|---|---|
| Timing offset estimation accuracy | High | Average |
| Frequency offset tolerance | Low | High |
| Cross-correlator complexity | Low, binary sequences do not require MULT operations during correlation | High, complex sequences require complex MULT operations during correlation |
| Signal generation | Easy (bipolar BPSK type sequence) | Average (complex valued IQ sequence) |
