Efficient adaptive transmission technique for multiuser OFDMA systems with reduced feedback rate

Jung Hyoung Kwon, Duho Rhee, Il Mu Byun, Kwang Soon Kim, Keum Chan Whang

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

1 Citation (Scopus)

Abstract

In this paper, we present a new scheme for sub-band allocation in multiuser downlink orthogonal frequency division multiple access (OFDMA) systems with partial channel quality information (CQI). Our objective is to maximize the total throughput of the system under the constraints of transmit power. In previous methods, each user in a cell transmits CQI of its all sub-bands to the base station, which requires extremely high feedback overhead. Thus, we propose an efficient sub-band allocation algorithm in which each user transmits partial CQI and one additional information to reduce the amount of feedback. Simulation results show that we can greatly reduce the amount of feedback than full feedback system.

Original languageEnglish
Title of host publication2006 Wireless Telecommunications Symposium, WTS
DOIs
Publication statusPublished - 2006
Event2006 Wireless Telecommunications Symposium, WTS - Pomona, CA, United States
Duration: 2006 Apr 272006 Apr 29

Publication series

Name2006 Wireless Telecommunications Symposium, WTS

Other

Other2006 Wireless Telecommunications Symposium, WTS
CountryUnited States
CityPomona, CA
Period06/4/2706/4/29

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Communication

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