What is the main difference between GSM & CDMA?
Answer Posted / linku
GSM:
GSM stands for Global System for Mobile Communication and it operates on three frequencies 900,1800 and 1900 MHz.But in India we're using 900 and 1800 MHz.It uses time division multiple access(tdma) and frequency division multiple access(fdma).
CDMA:
CDMA stands for Code division multiple access.It operates on 450,800 and 1900 MHz.But we're using 800MHz.
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But the main difference between GSM and CDMA is,in GSM the transmission media is air and in CDMA the transmission media is optical fibre cable and it works on the principle of total internal reflection.
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