Following are the difference between FDMA (frequency division multiple access) and TDMA (time division multiple access) :
| FDMA | TDMA |
|---|---|
| FDMA stand for frequency division multiple access. | TDMA stand for time division multiple access. |
| The FDMA (frequency division multiple access) is not required synchronization. | It is required synchronization. |
| It has less power efficiency. | It has more power efficiency. |
| It requires high carrier frequency stability. | The high carrier frequency is not necessary. |
| It has divide frequency band into disjoint subband. | It has divided the time into non overlapping time slot. |
| Its Entire band of frequencies is divided into multiple RF channels/carriers. Each carrier is allocated to different users. | Its entire bandwidth is shared among different subscribers at fixed predetermined or dynamically assigned time intervals/slots. |
| It has continuous transmission scheme. | It discontinuous transmission scheme. |
| It used in GSM and PDC. | It is used in advanced mobile phone systems (AMPS). |
