Improved Throughput of WCDMA Downlink using Power Ramping under Retransmissions for Type I Hybrid ARQ with in Rayleigh Fading Channel 


Vol. 32,  No. 1, pp. 9-12, Jan.  2007


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  Abstract

In this paper, we propose and analyze a scheme for wireless channels, which is a combination of a type I hybrid-automatic repeat request (H-ARQ) scheme and a power ramping. The power ramping is considered for more reliable downlink data transmission, in which the transmission power is gradually changed from a small level to a large level when the number of retransmissions increases. The simulation results demonstrate that,when the power ramping step size is 0.5㏈, the average throughput gain may be as highas 2% to 5% with properly selected parameters.

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  Cite this article

[IEEE Style]

B. Kim, S. Hwang, Y. Hong, "Improved Throughput of WCDMA Downlink using Power Ramping under Retransmissions for Type I Hybrid ARQ with in Rayleigh Fading Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 9-12, 2007. DOI: .

[ACM Style]

Bonghoe Kim, Seung-Hoon Hwang, and Yupyo Hong. 2007. Improved Throughput of WCDMA Downlink using Power Ramping under Retransmissions for Type I Hybrid ARQ with in Rayleigh Fading Channel. The Journal of Korean Institute of Communications and Information Sciences, 32, 1, (2007), 9-12. DOI: .

[KICS Style]

Bonghoe Kim, Seung-Hoon Hwang, Yupyo Hong, "Improved Throughput of WCDMA Downlink using Power Ramping under Retransmissions for Type I Hybrid ARQ with in Rayleigh Fading Channel," The Journal of Korean Institute of Communications and Information Sciences, vol. 32, no. 1, pp. 9-12, 1. 2007.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880