What Are The Difference Between Tdma?

1.	What Are The Difference Between Tdma?
Answer» CDMA and TDMA : CDMA Power limited system While people talking, random noise band playing occurs CONVERSATION need to be extracted from the background din GP is high when people SPEAK different languages, which is easier to DISTINGUISH individual speakers It is difficult for distinguishing individuals, when GP is low. The system performance will be degraded for every user when the number of users increases. Fading would be reduced with wide frequency spectrum Need to have separate multipath signals with different delays by “chip” unit. TDMA : Receiving or TRANSMISSION is allowed for only one user in a given slot All slots are assigned cyclically The transmission is non-continuous It is essential to use digital data and modulation Data rate overhead is between 20% – 30% Overhead tradeoffs are size of data payload and latency Multiple users are shared with single carrier frequency Handoff is made simpler by using non-continuous transmission All slots are assigned on demand Due to reduced inter user interference, the power control is less stringent. CDMA and TDMA : CDMA TDMA :

Answer»

CDMA and TDMA :

CDMA

Power limited system
While people talking, random noise band playing occurs
CONVERSATION need to be extracted from the background din
GP is high when people SPEAK different languages, which is easier to DISTINGUISH individual speakers
It is difficult for distinguishing individuals, when GP is low.
The system performance will be degraded for every user when the number of users increases.
Fading would be reduced with wide frequency spectrum
Need to have separate multipath signals with different delays by “chip” unit.

TDMA :

CDMA and TDMA :

CDMA

TDMA :

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