Title :
Channel estimation for space-time orthogonal block codes
Author :
Budianu, Cristian ; Tong, Lang
Author_Institution :
Sch. of Electr. Eng., Cornell Univ., Ithaca, NY, USA
Abstract :
Space-time coding is an efficient technique to exploit transmitting and receiving diversities for wireless channels. One of the key components in the design of receivers for space-time codes is channel estimation. For the block codes based on orthogonal design proposed by Alamouti and Tarokh (see IEEE Trans. on Information Theory, vol45, no.5, p.1456-67, 1999), a new class of pilot assisted channel estimation schemes are presented where pilot symbols are superimposed on the data symbols. Placement strategies are examined for their efficiency in channel estimation and data transmission
Keywords :
block codes; data communication; diversity reception; maximum likelihood estimation; telecommunication channels; MLE; channel estimation; data symbols; data transmission; orthogonal code design; packet retransmission; pilot assisted channel estimation; receiver design; receiving diversity; semiblind maximum likelihood estimation; space-time coding; space-time orthogonal block codes; superimposed pilot symbols placement; transmitting diversity; wireless channels; Block codes; Channel estimation; Data communication; Error analysis; Mutual information; Research initiatives; Space time codes; Throughput; Transmitting antennas; Wireless communication;
Conference_Titel :
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location :
Helsinki
Print_ISBN :
0-7803-7097-1
DOI :
10.1109/ICC.2001.936836
