A hybrid ARQ scheme with power ramping

S. H. Hwang, B. Kim, Y. S. Kim

Research output: Contribution to journalConference articlepeer-review

13 Scopus citations

Abstract

In this paper, we propose and analyze a scheme for wireless channels, which is a combination of a hybrid type I Automation Repeat reQuest (ARQ) scheme and a power ramping. In hybrid type I ARQ scheme, the same redundancy bits for error correction is transmitted repeatedly when a negative acknowledgment (NAK) is obtained. In addition to the ARQ scheme, the power ramping is considered for more reliable downlink data transmission, in which the transmission power is gradually changed from a small level to large when the number of retransmission increases. This is done without any knowledge of the channels at the transmitter. Simulation results show that by applying the combined hybrid ARQ and power ramping scheme with properly selected parameters, it has throughput advantage of 3∼5%.

Original languageEnglish
Pages (from-to)1579-1583
Number of pages5
JournalIEEE Vehicular Technology Conference
Volume3
Issue number54ND
StatePublished - 2001
EventIEEE 54th Vehicular Technology Conference (VTC FALL 2001) - Atlantic City, NJ, United States
Duration: 7 Oct 200111 Oct 2001

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