kayaoo
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Hi, All,
From Shannon's equation. C=Wlog2(1+S/N), S/N requirement can be decreased infinitely by decreasing the bit rate while keep the band width, or in another way, by keeping S and decreasing bandwidth, bit rate and noise. In some zigbee application, we do need a slow (such 10 bps), low power(Pout <10dBm, battery powered.), security and long distance( such as 3Km) communication. Is there any way to realize this and what is the rooftop? Thanks.
Kayaoo
From Shannon's equation. C=Wlog2(1+S/N), S/N requirement can be decreased infinitely by decreasing the bit rate while keep the band width, or in another way, by keeping S and decreasing bandwidth, bit rate and noise. In some zigbee application, we do need a slow (such 10 bps), low power(Pout <10dBm, battery powered.), security and long distance( such as 3Km) communication. Is there any way to realize this and what is the rooftop? Thanks.
Kayaoo
