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Wireless multicarrier communications

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2 Author(s)
Zhendao Wang ; Dept. of Electr. & Comput. Eng., Minnesota Univ., MS, USA ; Giannakis, G.B.

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

Published in:

Signal Processing Magazine, IEEE  (Volume:17 ,  Issue: 3 )