Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers

Jihyung Kim, Dong Seung Kwon, Sangho Nam, Daesik Hong

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

3 Citations (Scopus)

Abstract

This paper analyzes the degradation effect of null subcarriers in orthogonal frequency division multiplexing (OFDM) systems on the time-domain maximum likelihood (ML) estimation performance. The analysis is used as the basis for a proposal for a new channel estimation method that can overcome performance degradation caused by null subcarriers. The accuracy of the proposed channel estimation is guaranteed by using an interpolation of the estimated channel in the frequency domain that comes before the channel estimation in the time domain.

Original languageEnglish
Title of host publication2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
Pages1092-1096
Number of pages5
DOIs
Publication statusPublished - 2007 Dec 1
Event2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall - Baltimore, MD, United States
Duration: 2007 Sep 302007 Oct 3

Other

Other2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall
CountryUnited States
CityBaltimore, MD
Period07/9/3007/10/3

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All Science Journal Classification (ASJC) codes

  • Electrical and Electronic Engineering

Cite this

Kim, J., Kwon, D. S., Nam, S., & Hong, D. (2007). Channel estimation based on comb-type pilot structure in OFDM system with null subcarriers. In 2007 IEEE 66th Vehicular Technology Conference, VTC 2007-Fall (pp. 1092-1096). [4349885] https://doi.org/10.1109/VETECF.2007.236