Group-wised reference signal allocation for single-carrier FDMA radio access in evolved UTRA uplink

Yoshiaki Ofuji, Yoshihisa Kishiyama, Kenichi Higuchi, Mamoru Sawahashi

Research output: Chapter in Book/Report/Conference proceedingConference contribution

5 Citations (Scopus)

Abstract

This paper proposes a group-wised reference signal (RS) for channel quality indicator measurement in frequency domain channel-dependent scheduling employing adaptive control of the transmission bandwidth in the single-carrier frequency division multiple access-based Evolved UMTS Terrestrial Radio Access uplink. In the proposed method, fluctuation in the interference power imparted to the surrounding cells is suppressed to a low level, and both the user throughput for a user equipment (UE) near the cell edge and the cell throughput are improved compared to the conventional uniform RS allocation due to reductions in the error when selecting the optimum UE in channel-dependent scheduling and selecting the modulation and coding scheme in the adaptive modulation and channel Coding. Simulation results show that the user throughput at the 5% cumulative distribution function value when employing the proposed group-wised sounding RS allocation with the adaptive transmission bandwidth is increased by approximately 75% and 65% for the inter-site distance of 500 and 1732 m, respectively, compared to that using a uniform RS allocation, while achieving almost the same level of cell throughput.

Original languageEnglish
Title of host publication2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Pages1871-1875
Number of pages5
DOIs
Publication statusPublished - 2 Aug 2007
Event2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring - Dublin, Ireland
Duration: 22 Apr 200725 Apr 2007

Publication series

NameIEEE Vehicular Technology Conference
ISSN (Print)1550-2252

Conference

Conference2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
CountryIreland
CityDublin
Period22/04/0725/04/07

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Cite this

Ofuji, Y., Kishiyama, Y., Higuchi, K., & Sawahashi, M. (2007). Group-wised reference signal allocation for single-carrier FDMA radio access in evolved UTRA uplink. In 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring (pp. 1871-1875). [4212816] (IEEE Vehicular Technology Conference). https://doi.org/10.1109/VETECS.2007.388