Title :
Semi-blind channel identification for W-CDMA by orthogonal transmit diversity
Author :
Li, Thomas Hong ; Zoltowski, Michael D.
Author_Institution :
Sch. of Electr. & Comput. Eng., Purdue Univ., West Lafayette, IN, USA
Abstract :
A novel semi-blind channel identification scheme is proposed for 3G W-CDMA communication systems by using orthogonal transmit diversity where two transmit antennas and one receive antenna are employed. After decomposing the de-spread signals into two independent signals, an equivalent SIMO channel model is obtained. Semi-blind channel identification is then achieved by applying both the cross-relation method and pilot symbols to the derived channel model. This scheme allows one to perform semi-blind channel identification without increasing both the cost and complexity of mobile stations. Simulation results are presented to evaluate the proposed semi-blind channel identification method
Keywords :
broadband networks; code division multiple access; diversity reception; identification; land mobile radio; multiuser channels; radio networks; receiving antennas; transmitting antennas; 3G W-CDMA communication systems; SIMO channel model; cross-relation method; de-spread signals decomposition; mobile stations; orthogonal transmit diversity; pilot symbols; receive antenna; semi-blind channel identification; simulation results; transmit antennas; 3G mobile communication; Communication standards; Communications technology; Costs; Demodulation; Diversity reception; Multiaccess communication; Receiving antennas; Transmitting antennas; Wideband;
Conference_Titel :
Acoustics, Speech, and Signal Processing, 2000. ICASSP '00. Proceedings. 2000 IEEE International Conference on
Conference_Location :
Istanbul
Print_ISBN :
0-7803-6293-4
DOI :
10.1109/ICASSP.2000.861118
