CDMA Multiplexing

FEC: Convolutional code concatenated with Nordstrom-Robinson (16,8) modulation. Coherent demodulation. Overall chip rate 160kchips/sec.

(C): 100% of chips for 10bps rate, rate 1/2 convolutional code, spreading factor 4000.

(B1): 87.5% of chips for 10bps rate, rate 1/2 convolutional code, spreading factor 3500.

(A1): 12.5% of chips for 10bps rate, rate 1/2 convolutional code, spreading factor 500.

(D): 100% of chips for 10kbps rate, rate 1/5 convolutional code.

(A2): 87.5% of chips for 10kbps rate, rate 1/4 convolutional code.

(B2): 12.5% of chips for 10kbps, no convolutional code.

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