Table 3 Correlation properties for codes of length 128
From: Performance evaluation of chaotic spreading sequences on software-defined radio
Codes of length 128 for 5 users | |||
|---|---|---|---|
Sequence | FoM | Pearson | Mean BER |
Walsh | 0.0360 | 0 | 0.0029 |
Tent | 0.0552 | −0.2335 | 0.0726 |
Quadratic | 1.9255 | 0.0279 | 0.0256 |
2D Hénon | 0.0144 | 0.5971 | 0.0040 |
2D Duffing | 0.0123 | −0.0059 | 6.499 ·10−5 |
3D Chua | 0.0374 | 0 | 0.0027 |
Codes of length 128 for 10 users | |||
Sequence | FoM | Pearson | Mean BER |
Walsh | 0.0461 | 0 | 0.0043 |
Tent | 0.2381 | 0.0781 | 0.0557 |
Quadratic | 1.8833 | 0.0666 | 0.0829 |
2D Hénon | 0.0162 | 0.6356 | 0.0024 |
2D Duffing | 0.0124 | −0.0070 | 1.0000 ·10−6 |
3D Chua | 0.0374 | −0.1000 | 0.0248 |
Codes of length 64 for 16 users | |||
Sequence | FoM | Pearson | Mean BER |
Walsh | 0.0512 | 0 | 0.0107 |
Tent | 0.5138 | −0.0013 | 0.4094 |
Quadratic | 1.1836 | 0.3891 | 0.0177 |
2D Hénon | 0.0190 | 0.6555 | 0.0.0032 |
2D Duffing | 0.0124 | −0.0301 | 1.0000 ·10−6 |
3D Chua | 0.0374 | −0.0625 | 0.0045 |