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A computationally efficient algorithm for code decision in CCK based high data rate wireless communications

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2 Author(s)
S. Batabyal ; Hellosoft Pvt. Ltd., Hyderabad, India ; S. J. Sarmah

A computationally efficient algorithm for decoding an 8-chip complementary code sequence using fast Walsh transform (FWT) technique is presented. The reduction in computation is achieved by exploiting the redundant nature of a set of 4 outputs at the 3/sup rd/ stage of FWT computed from the same pair of 2/sup nd/ stage outputs, the redundancy being with respect to their squared magnitudes. The advantages of the algorithm are discussed with respect to a hardware implementation.

Published in:

Personal Wireless Communications, 2002 IEEE International Conference on

Date of Conference:

15-17 Dec. 2002