Title :
MC-CDMA uplink channel coding scheme with built-in channel estimation
Author :
Costa, E. ; Schulz, E. ; Haas, H. ; Krouk, E. ; Taubin, F. ; Trifonov, P.
Author_Institution :
Siemens AG, Erlangen, Germany
Abstract :
In this paper, a coding scheme with M-ary Walsh-Hadamard (WH) orthogonal modulation is considered for multi-carrier (MC) transmission. A novel pilot-assisted channel estimation approach is proposed, that efficiently exploits the properties of WH codes. Firstly, simulation results on the single-user performance show the influence of the energy distribution between pilot and information symbols. Then, the impact of the channel estimation method is assessed for different system loads in a MC code division multiple access (MC-CDMA) uplink scenario.
Keywords :
Hadamard codes; OFDM modulation; channel coding; channel estimation; code division multiple access; multiuser channels; MC-CDMA; OFDM; Walsh-Hadamard codes; Walsh-Hadamard orthogonal modulation; built-in channel estimation; energy distribution; information symbols; multicarrier code division multiple access uplink scenario; multicarrier transmission; orthogonal frequency division multiplexing; pilot symbols; pilot-assisted channel estimation; system loads; uplink channel coding scheme; Channel coding; Channel estimation; Decoding; Fading; Modulation coding; Multiaccess communication; Multicarrier code division multiple access; OFDM modulation; Radio spectrum management; Robustness;
Conference_Titel :
Communications, 2003. ICC '03. IEEE International Conference on
Print_ISBN :
0-7803-7802-4
DOI :
10.1109/ICC.2003.1203995
