A multiuser subcarrier and power allocation scheme in localized SC-FDMA systems

Wei Chen Pao, Yung Fang Chen, Meng Gu Tsai, Wen Ting Lou, Yao Jen Chang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Scopus citations

Abstract

This paper presents a novel allocation scheme to solve a subcarrier and power allocation problem for multiuser SC-FDMA uplink systems with a localized subcarrier mapping mode. In the localized mode, subcarriers assigned to a user are required to be consecutive. The limitation makes the problem considered in this paper different from those of conventional multiuser OFDM systems. The proposed scheme contains the chunk and the iterative subcarrier assignments. The chunk assignment utilizes an interior term to allocate a set of subcarriers to a user. The iterative assignment re-assigns the adjacent subcarriers between users to other users to improve the achievable rates. Furthermore, a constant power allocation approach is employed in conjunction with the proposed scheme. Simulation results show that the proposed scheme outperforms the existing schemes.

Original languageEnglish
Title of host publication2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012
Pages210-214
Number of pages5
DOIs
StatePublished - 2012
Event2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012 - Sydney, NSW, Australia
Duration: 9 Sep 201212 Sep 2012

Publication series

NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

Conference

Conference2012 IEEE 23rd International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2012
Country/TerritoryAustralia
CitySydney, NSW
Period9/09/1212/09/12

Keywords

  • SC-FDMA
  • localized FDMA
  • subcarrier allocation

Fingerprint

Dive into the research topics of 'A multiuser subcarrier and power allocation scheme in localized SC-FDMA systems'. Together they form a unique fingerprint.

Cite this