Skip to main content

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