Equalization for OFDMA systems exploiting unused subchannels

Jaekwon Kim; Ye Hoon Lee; Cheolwoo You; Dong Ho Kim

Equalization for OFDMA systems exploiting unused subchannels

Jaekwon Kim, Ye Hoon Lee, Cheolwoo You, Dong Ho Kim

Samsung

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

3 Scopus citations

Abstract

In orthogonal frequency division multiple access (OFDMA) systems, the cyclic prefix (CP) length needs to be no less than the longest channel delay spread of many users, reducing bandwidth efficiency more significantly than in single user OFDM systems. We propose a novel receiver for OFDMA systems with an insufficient CP, exploiting the unused subchannels for a user. With the aid of computer simulations, we demonstrate that the proposed equalization method is superior to the conventional equalization method using a time domain channel shortening filter in terms of the achievable SNR and the error performance.

Original language	English
Title of host publication	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
Pages	372-376
Number of pages	5
State	Published - 2005
Event	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 - Berlin, Germany Duration: 11 Sep 2005 → 14 Sep 2005

Publication series

Name	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume	1

Conference

Conference	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
Country/Territory	Germany
City	Berlin
Period	11/09/05 → 14/09/05

Keywords

Equalization
OFDMA

Cite this

@inproceedings{007ff975ff5a4e62a6114c078d648ad6,

title = "Equalization for OFDMA systems exploiting unused subchannels",

abstract = "In orthogonal frequency division multiple access (OFDMA) systems, the cyclic prefix (CP) length needs to be no less than the longest channel delay spread of many users, reducing bandwidth efficiency more significantly than in single user OFDM systems. We propose a novel receiver for OFDMA systems with an insufficient CP, exploiting the unused subchannels for a user. With the aid of computer simulations, we demonstrate that the proposed equalization method is superior to the conventional equalization method using a time domain channel shortening filter in terms of the achievable SNR and the error performance.",

keywords = "Equalization, OFDMA",

author = "Jaekwon Kim and Lee, \{Ye Hoon\} and Cheolwoo You and Kim, \{Dong Ho\}",

year = "2005",

language = "English",

isbn = "3800729091",

series = "IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC",

pages = "372--376",

booktitle = "2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005",

note = "2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 ; Conference date: 11-09-2005 Through 14-09-2005",

}

Kim, J, Lee, YH, You, C & Kim, DH 2005, Equalization for OFDMA systems exploiting unused subchannels. in 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005., 1651461, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, vol. 1, pp. 372-376, 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005, Berlin, Germany, 11/09/05.

Equalization for OFDMA systems exploiting unused subchannels. / Kim, Jaekwon; Lee, Ye Hoon; You, Cheolwoo et al.
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005. 2005. p. 372-376 1651461 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Equalization for OFDMA systems exploiting unused subchannels

AU - Kim, Jaekwon

AU - Lee, Ye Hoon

AU - You, Cheolwoo

AU - Kim, Dong Ho

PY - 2005

Y1 - 2005

N2 - In orthogonal frequency division multiple access (OFDMA) systems, the cyclic prefix (CP) length needs to be no less than the longest channel delay spread of many users, reducing bandwidth efficiency more significantly than in single user OFDM systems. We propose a novel receiver for OFDMA systems with an insufficient CP, exploiting the unused subchannels for a user. With the aid of computer simulations, we demonstrate that the proposed equalization method is superior to the conventional equalization method using a time domain channel shortening filter in terms of the achievable SNR and the error performance.

AB - In orthogonal frequency division multiple access (OFDMA) systems, the cyclic prefix (CP) length needs to be no less than the longest channel delay spread of many users, reducing bandwidth efficiency more significantly than in single user OFDM systems. We propose a novel receiver for OFDMA systems with an insufficient CP, exploiting the unused subchannels for a user. With the aid of computer simulations, we demonstrate that the proposed equalization method is superior to the conventional equalization method using a time domain channel shortening filter in terms of the achievable SNR and the error performance.

KW - Equalization

KW - OFDMA

UR - http://www.scopus.com/inward/record.url?scp=33750071595&partnerID=8YFLogxK

M3 - Conference contribution

AN - SCOPUS:33750071595

SN - 3800729091

SN - 9783800729098

T3 - IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

SP - 372

EP - 376

BT - 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005

T2 - 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005

Y2 - 11 September 2005 through 14 September 2005

ER -

Equalization for OFDMA systems exploiting unused subchannels

Abstract

Publication series

Conference

Keywords

Other files and links

Fingerprint

Cite this