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Receiver design for type-I hybrid ARQ scheme in frequency-selective fading channels

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3 Author(s)
Jing Liang ; Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA ; Zhi Ding ; Shu Lin

This paper proposes a new receiver design for a type-I hybrid automatic repeat request (ARQ) scheme in wireless packet data services. To achieve reliable transmission under a multipath fading channel environment, temporal diversity from retransmissions is utilized to facilitate channel equalization and error correction via low density parity check (LDPC) codes. A linear equalization receiver structure and an iterative interference cancellation receiver structure are investigated separately. Moreover, three different channel estimation schemes are discussed and their impact on throughput performance are demonstrated.

Published in:

Signals, Systems and Computers, 2001. Conference Record of the Thirty-Fifth Asilomar Conference on  (Volume:2 )

Date of Conference:

4-7 Nov. 2001