| 2G |
Second Generation mobile phone system (GSM,
IS-95) |
| 3G |
Third Generation mobile phone system |
| 4G |
Fourth Generation mobile phone system |
| AC |
Alternating Current (Frequency above 0 Hz) |
| ADSL |
Asymmetric Digital Subscriber Line |
| alpha |
Path loss exponent (rate of path loss
change with distance) |
| AM |
Amplitude Modulation |
| APR |
Access Point Repeater |
| ASK |
Amplitude Shift Keying |
| AWGN |
Additive White Gaussian Noise |
| b/s/Hz |
Bits per second per hertz (unit of spectral
efficiency) |
| BER |
Bit Error Rate |
| bps |
Bits per second |
| BPSK |
Binary Phase Shift Keying |
| BS |
Base Station |
| CD |
Compact Disc |
| CDMA |
Code Division Multiple Access |
| CF |
Crest Factor (peak to average power ratio
of the RF envelope) |
| DAB |
Digital Audio Broadcasting |
| dB |
Decibel (ratio in log scale) |
| dBc |
Decibel relative to main signal power |
| dBm |
Decibel relative to 1 milliwatt |
| DC |
Direct Current (0 Hz) |
| DDS |
Direct Digital Synthesiser |
| DFT |
Discrete Fourier Transform |
| DMT |
Discrete Multi-Tone |
| DPSK |
Differential Phase Shift Keying |
| DSBSC |
Double Side Band Suppressed Carrier |
| DS-CDMA |
Direct Sequence Code Division Multiple
Access |
| DSP |
Digital Signal Processing |
| DSSS |
Direct Sequence Spread Spectrum |
| DVB |
Digital Video Broadcasting |
| DVB-C |
Digital Video Broadcasting - Cable |
| DVB-S |
Digital Video Broadcasting - Satellite |
| DVB-T |
Digital Video Broadcasting - Terrestrial |
| EBNR |
Energy per Bit to Noise Ratio |
| FDM |
Frequency Division Multiplexing |
| FEC |
Forward Error Correction |
| FFT |
Fast Fourier Transform |
| FIR |
Finite Impulse Response (digital filter) |
| FM |
Frequency Modulation |
| Fs |
Sample Frequency |
| FSK |
Frequency Shift Keying |
| GA |
Genetic Algorithm |
| GHz |
Gigahertz - 10^9 Hz |
| GMSK |
Gaussian Minimum Shift Keying |
| GSM |
Global System for Mobile communications |
| HDTV |
High Definition Television |
| HiperLAN2 |
HIgh PErformance Radio Local Area Network,
WLAN standard (Europe) based on OFDM, with a
maximum data rate of 54 Mbps. Similar to
IEEE802.11a |
| Hz |
Hertz (cycles per second) |
| ICI |
Inter-Carrier Interference |
| IEEE802.11a |
WLAN standard (U.S.) based on OFDM, with a
maximum data rate of 54 Mbps. Similar to
HiperLAN2 |
| IEEE802.11b |
WLAN standard (U.S.) based on DSSS, with a
maximum data rate of 11 Mbps |
| IF |
Intermediate Frequency |
| IFFT |
Inverse Fast Fourier Transform |
| IMD |
Inter-Modulation Distortion |
| IQ |
Inphase Quadrature |
| ISI |
Inter-Symbol Interference |
| ISM |
Industrial Scientific Medical |
| IS-95 |
Mobile phone standard using CDMA
transmission method. |
| JCU |
James Cook University |
| K |
Kelvin |
| kbps |
Kilo bits per second (10^3 bps) |
| kHz |
Kilohertz - 10^3 Hz |
| km |
Kilometer (10^3 m) |
 |
Lambda - RF wavelength |
| LO |
Local Oscillator |
| LOS |
Line Of Sight |
| m |
Metre |
| Mbps |
Mega bits per second (10^6 bps) |
| MHz |
Megahertz - 10^6Hz |
| MPEG |
Moving Picture Experts Group (Video
compression standard) |
| NF |
Receiver Noise Figure |
| OBO |
Output power BackOff |
| OFDM |
Orthogonal Frequency Division Multiplexing |
| PAPR |
Peak to Average Power Ratio |
| PC |
Personal Computer |
| PDA |
Personal Digital Assistant |
 |
Pi (3.14159265 ….) |
| PLL |
Phase Locked Loop |
| PM |
Phase Modulation |
| PRC |
Peak Reduction Carriers |
| PRS |
Pseudo Random Sequence |
| PSK |
Phase Shift Keying |
| QAM |
Quadrature Amplitude Modulation |
| QOS |
Quality Of Service |
| QPSK |
Quadrature Phase Shift Keying |
| RAKE |
Multiple tap multipath equalisation for CDMA |
| RC |
Raised Cosine (Guard Period) |
| RF |
Radio Frequency |
| RMS |
Root Mean Squared |
| SFN |
Single Frequency Network |
| SHARC |
Super Harvard ARChitecture, Digital Signal
Processor by Analog Devices) |
| SIR |
Signal to Interference Ratio |
| SNR |
Signal to Noise Ratio |
| SSB |
Single Side Band |
| SSPA |
Solid State Power Amplifier |
| TDM |
Time Division Multiplexing |
| TDMA |
Time Division Multiple Access |
| TWTA |
Travelling Wave Tube Amplifier |
| µm |
Micrometre (10^-6 m) |
| UMTS |
Universal Mobile Telecommunications System |
| µs |
Microsecond (10^-6 s) |
| VSB |
Vestigal Side Band |
| W |
Watt (energy per unit time, one joule per
second) |
| W-CDMA |
Wide-band Code Division Multiple Access |
| WLAN |
Wireless Local Area Network |
| WLL |
Wireless Local Loop |
