Compare advantages of TDMA, FDMA, DS-SS CDMA satellite signal.

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written 7.9 years ago by

Sr. No.	FDMA	TDMA	DS-SS CDMA
1	Overall bandwidth is shared among many stations.	Time sharing of satellite transponder takes place	Sharing of bandwidth,and time both takes place.
2	Due to non-linearity of transponders amplifiers, inter modulation products are generated causing interference between adjacent channels.	Due to incorrect synchronization there can be interference between the adjacent time slots.	Both types of interference will not be present.
3	Synchronisation is not necessary.	Synchronisation is essential.	Synchronisation is not necessary.
4	Code word is not required.	Code word is not required.	Code word is required.
5	Guard bands between adjacent channels are necessary.	Guard time between adjacent times slots are necessary.	Guard times and guard bands are not necessary.

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