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 language | English |
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Pages (from-to) | 1579-1583 |
Number of pages | 5 |
Journal | IEEE Vehicular Technology Conference |
Volume | 3 |
Issue number | 54ND |
State | Published - 2001 |
Event | IEEE 54th Vehicular Technology Conference (VTC FALL 2001) - Atlantic City, NJ, United States Duration: 7 Oct 2001 → 11 Oct 2001 |