Title :
Wireless multicarrier communications
Author :
Wang, Zhengdo ; Giannakis, Georgios B.
Author_Institution :
Dept. of Electr. & Comput. Eng., Minnesota Univ., MS, USA
fDate :
5/1/2000 12:00:00 AM
Abstract :
Relying on basic tools such as eigensignals of linear time-invariant systems, linear and circular block convolution, and fast Fourier transforms (FFTs), this article develops a systematic discrete-time framework and designs novel systems for single- and multiuser wireless multicarrier communications-a field rich in signal processing challenges that holds great potential in various applications including audio/video broadcasting, cable television, modem design, multimedia services, mobile local area networks, and future-generation wideband cellular systems. Wireless multicarrier (MC) communication systems utilize multiple complex exponentials as information-bearing carriers. MC transmissions thus retain their shape and orthogonality when propagating through linear time-dispersive media, precisely as eigensignals do when they pass through linear time-invariant (LTI) systems
Keywords :
broadband networks; broadcasting; cable television; cellular radio; convolution; dispersive channels; equalisers; fast Fourier transforms; local area networks; modems; multimedia communication; multiuser channels; OFDM; audio/video broadcasting; block transmission; cable television; circular block convolution; eigensignals; equalization; information-bearing carriers; linear block convolution; linear time-dispersive media; linear time-invariant systems; mobile local area networks; modem design; multimedia services; multiple complex exponentials; multiuser wireless multicarrier communications; signal processing; single-user wireless multicarrier communications; systematic discrete-time framework; wideband cellular systems; Cable TV; Convolution; Fast Fourier transforms; Flexible printed circuits; Mobile communication; Multimedia communication; Signal design; TV broadcasting; Video signal processing; Wireless communication;
Journal_Title :
Signal Processing Magazine, IEEE
