Group members: Shaon Sikder, Afrin Al Jannat, Ismail Hossen, Alvee Newaz, Rabeya Sultana. The document discusses CDMA technologies for cellular phone systems. It covers the evolution of cellular systems from 1G to 3G, the requirements for 3G, multiple access methods including frequency division duplex and time division duplex, an overview of CDMA including direct sequence spread spectrum modulation, rake receivers, power control, frequency allocation, and soft handoff. In conclusion, CDMA is deemed superior to FDMA and TDMA systems due to its use of spread spectrum techniques.