A21 (5 points)
A uniform quantizer operating on the samples has a data rate of 6 KBPS; the sampling rate is 1 kHz. However, the resulting signal-to-quantization noise ratio (SNRQ) of 30 dB is unsatisfactory, and at least an SNRQ of 40 dB is required. What would be the minimum data rate in KBPS of the system that meets the requirement? What would be the minimum transmission bandwidth required f 4-ary signaling is used? Show all your steps/logic as necessary.