Analysis of power ramping schemes for UTRA-FDD random access channel
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AbstractThe random access,channel (RACH) in a universal terrestrial radio access-frequency division duplex (UTRA-FDD) system is a contention-hased channel mainly used to carry control information from mobile stations (MS) to base stations (BS). The transmission of a random access request contains two steps: preamble transmission and message transmission. In preamble transmission, the power ramping technique is used to favor the delayed preambles by stepping up the transmission power after each unsuccessful access. In doing so, the success of transmitting a long-delayed preamble is increased due to the power capture effect. This paper analyzes the blocking, throughput, and delay performance of preamble transmission under three power ramping schemes with fixed, linear, and geometric step sizes. The interference caused by different power ramping schemes is also compared.
All Author(s) ListYang Y, Yum TSP
Journal nameIEEE Transactions on Wireless Communications
Year2005
Month11
Day1
Volume Number4
Issue Number6
PublisherIEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Pages2688 - 2693
ISSN1536-1276
eISSN1558-2248
LanguagesEnglish-United Kingdom
Keywordspower ramping; random access channel (RACH); third-generation (3G) wireless communications; UTRA-FDD
Web of Science Subject CategoriesEngineering; Engineering, Electrical & Electronic; ENGINEERING, ELECTRICAL & ELECTRONIC; Telecommunications; TELECOMMUNICATIONS

Last updated on 2020-08-08 at 00:39