Enhanced constant power allocation methods in OFDM systems

Wei Chen Pao, Yung Fang Chen

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

Abstract

An enhanced mechanism is designed to improve the performance of the constant power allocation methods in OFDM systems. The main idea of the proposed enhanced mechanism is to make a subcarrier have several portions virtually. Each portion is considered as one subcarrier when allocating constant power. Therefore, more power can be allocated to those subcarriers with better channel states. The proposed enhanced mechanism is developed without increasing the complexity in terms of Big-Oh notation. The simulation results reveal that the performances of the proposed enhanced methods are better than those of the conventional constant power methods.

Original languageEnglish
Title of host publication2012 12th International Conference on ITS Telecommunications, ITST 2012
Pages238-241
Number of pages4
DOIs
StatePublished - 2012
Event2012 12th International Conference on ITS Telecommunications, ITST 2012 - Taipei, Taiwan
Duration: 5 Nov 20128 Nov 2012

Publication series

Name2012 12th International Conference on ITS Telecommunications, ITST 2012

Conference

Conference2012 12th International Conference on ITS Telecommunications, ITST 2012
Country/TerritoryTaiwan
CityTaipei
Period5/11/128/11/12

Keywords

  • capacity
  • OFDM
  • power allocation

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