Title :
Comparison of amplitude distributions for Hadamard spreading and Fourier spreading in multi-carrier code division multiplexing
Author :
Bury, Andreas ; Lindner, Jürgen
Author_Institution :
Dept. of Inf. Technol., Ulm Univ., Germany
Abstract :
We investigate amplitude distributions of transmit signals for multi-carrier spread spectrum (MCSS) transmission methods based on orthogonal frequency division multiplexing (OFDM), also called multi-carrier code division multiplexing (MC-CDM). In particular we compare Fourier spreading with the commonly used Walsh-Hadamard spreading. As a basis for the comparison we describe a general model. Both up- and downlink of multiple access transmission schemes employing either multi-carrier code division multiple access (MC-CDMA) or multi-carrier frequency division multiple access (MC-FDMA) are compared
Keywords :
Hadamard transforms; OFDM modulation; code division multiple access; frequency division multiple access; land mobile radio; multiplexing; radio links; spread spectrum communication; Fourier spreading; Hadamard spreading; MC-CDMA; MC-FDMA; OFDM; Walsh-Hadamard spreading; amplitude distributions; downlink; multi-carrier CDM; multi-carrier code division multiple access; multi-carrier code division multiplexing; multi-carrier frequency division multiple access; multi-carrier spread spectrum transmission; orthogonal frequency division multiplexing; transmit signals; uplink; Bandwidth; Code division multiplexing; Discrete Fourier transforms; Information technology; Multiaccess communication; Multicarrier code division multiple access; OFDM; Peak to average power ratio; Spread spectrum communication; Transmitters;
Conference_Titel :
Global Telecommunications Conference, 2000. GLOBECOM '00. IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-6451-1
DOI :
10.1109/GLOCOM.2000.891260
