An AMC/HARQ Scheme Based on ACK Feedback

JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM ›› 2004, Vol. 27 ›› Issue (2): 29-33.

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An AMC/HARQ Scheme Based on ACK Feedback

YANG Hong-wen, XIAO Xuan, GUO Wen-bin, YANG Da-cheng

Telecommunication Engineering School, Beijing University of Posts andTelecommunications, Beijing 100876, China

Received:2003-01-05 Online:2004-02-28

Abstract

Abstract: A novel adaptive AMC/HARQ scheme is proposed. The scheme makes use of ACK/NAK information to control the modulation/coding format, hence the C/I information feedback is no more required. The convergence and throughput performance in staticchannel is analyzed and the simulated performance for time varying fading channel is shown. The performance of the proposed scheme is comparable to the conventional C/I based AMC/HARQ where the C/I information known to the transmitter is not accurate. With the proposed scheme, the system design can be simplified and the reverse link capacity can be saved in case where the reverse link capacity isscarce.

Key words: adaptive modulation/coding, hybrid-ARQ, ACK

CLC Number:

TN911.22

YANG Hong-wen, XIAO Xuan, GUO Wen-bin, YANG Da-cheng. An AMC/HARQ Scheme Based on ACK Feedback
[J]. JOURNAL OF BEIJING UNIVERSITY OF POSTS AND TELECOM, 2004, 27(2): 29-33.

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An AMC/HARQ Scheme Based on ACK Feedback

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