The two most commonly used prescription anti-seizure medications for pets are phenobarbital (PB) and potassium bromide (KBr or K-BroVet Potassium Bromide). Diazepam is not used to prevent seizures in dogs because the effects last about 20 minutes.
In radio systems, TDMA is usually used alongside Frequency-division multiple access (FDMA) and Frequency division duplex (FDD); the combination is referred to as FDMA/TDMA/FDD. This is the case in both GSM and IS-136 for example.
Techopedia explains Code Division Multiplexing (CDM) CDMA uses spread spectrum, a technology that was developed in World War II to prevent enemies from intercepting and jamming transmissions. In spread spectrum, a data signal is sent over a range of frequencies in an assigned frequency spectrum.