Abstract :
The paper discusses IQ modulation representation, constellation , eye diagram display formats; BPSK, QPSK, MSK, properties of Gaussian and RRC filtering, the ISI concept; spread spectrum, OFDM, TDMA, FDMA, CDMA definitions; TDD and FDD; constant envelope modulation (Bluetooth and GSM); non-constant envelope modulation (EDGE, W-CDMA, IEEE 802.11b/a); transmitter and receiver key measurements.
Keywords :
Bluetooth; cellular radio; modulation; multi-access systems; wireless LAN; BPSK; Bluetooth; CDMA; EDGE; FDD; FDMA; GSM; Gaussian filtering; IEEE 802.11b/a; IQ modulation representation; ISI; MSK; OFDM; QPSK; RRC filtering; TDD; TDMA; W-CDMA; constant envelope modulation; constellation; eye diagram display formats; nonconstant envelope modulation; receiver; spread spectrum; transmitter;
