A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems

Myeon Gyun Cho; Woohyun Seo; Youngsoo Kim; Daesik Hong

A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems

Myeon Gyun Cho, Woohyun Seo, Youngsoo Kim, Daesik Hong

Department of Electrical and Electronic Engineering

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

9 Citations (Scopus)

Abstract

A novel feedback-reduction scheme is proposed for dynamic channel allocation (DCA) in OFDMA systems. Applying this delta-modulation (DM)-based scheme to the channel gain of adjacent subcarriers reduces the feedback information to 1 bit per subcarrier. Since this reduced feedback information can lead to performance degradation in the form of an increased bit error rate (BER), a modified amplitude craving greedy (ACG) method and improved DM are jointly adopted to minimize the loss. Simulation results verify that the proposed scheme can decrease feed-back information by a factor of 1/M while retaining performance comparable to the full feedback case, which requires M bits per subcarrier as feedback information.

Original language	English
Title of host publication	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
Pages	2747-2750
Number of pages	4
Publication status	Published - 2005
Event	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 - Berlin, Germany Duration: 2005 Sept 11 → 2005 Sept 14

Publication series

Name	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC
Volume	4

Other

Other	2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005
Country/Territory	Germany
City	Berlin
Period	05/9/11 → 05/9/14

All Science Journal Classification (ASJC) codes

Electrical and Electronic Engineering

Cite this

Cho, M. G., Seo, W., Kim, Y., & Hong, D. (2005). A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems. In 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005 (pp. 2747-2750). Article 1651942 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 4).

Cho, Myeon Gyun ; Seo, Woohyun ; Kim, Youngsoo et al. / A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems. 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005. 2005. pp. 2747-2750 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC).

@inproceedings{7883f02ca7784ff092b46142e40ccb11,

title = "A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems",

abstract = "A novel feedback-reduction scheme is proposed for dynamic channel allocation (DCA) in OFDMA systems. Applying this delta-modulation (DM)-based scheme to the channel gain of adjacent subcarriers reduces the feedback information to 1 bit per subcarrier. Since this reduced feedback information can lead to performance degradation in the form of an increased bit error rate (BER), a modified amplitude craving greedy (ACG) method and improved DM are jointly adopted to minimize the loss. Simulation results verify that the proposed scheme can decrease feed-back information by a factor of 1/M while retaining performance comparable to the full feedback case, which requires M bits per subcarrier as feedback information.",

author = "Cho, {Myeon Gyun} and Woohyun Seo and Youngsoo Kim and Daesik Hong",

year = "2005",

language = "English",

isbn = "3800729091",

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

pages = "2747--2750",

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",

}

Cho, MG, Seo, W, Kim, Y & Hong, D 2005, A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems. in 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005., 1651942, IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, vol. 4, pp. 2747-2750, 2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005, Berlin, Germany, 05/9/11.

A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems. / Cho, Myeon Gyun; Seo, Woohyun; Kim, Youngsoo et al.
2005 IEEE 16th International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC 2005. 2005. p. 2747-2750 1651942 (IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC; Vol. 4).

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

TY - GEN

T1 - A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems

AU - Cho, Myeon Gyun

AU - Seo, Woohyun

AU - Kim, Youngsoo

AU - Hong, Daesik

PY - 2005

Y1 - 2005

N2 - A novel feedback-reduction scheme is proposed for dynamic channel allocation (DCA) in OFDMA systems. Applying this delta-modulation (DM)-based scheme to the channel gain of adjacent subcarriers reduces the feedback information to 1 bit per subcarrier. Since this reduced feedback information can lead to performance degradation in the form of an increased bit error rate (BER), a modified amplitude craving greedy (ACG) method and improved DM are jointly adopted to minimize the loss. Simulation results verify that the proposed scheme can decrease feed-back information by a factor of 1/M while retaining performance comparable to the full feedback case, which requires M bits per subcarrier as feedback information.

AB - A novel feedback-reduction scheme is proposed for dynamic channel allocation (DCA) in OFDMA systems. Applying this delta-modulation (DM)-based scheme to the channel gain of adjacent subcarriers reduces the feedback information to 1 bit per subcarrier. Since this reduced feedback information can lead to performance degradation in the form of an increased bit error rate (BER), a modified amplitude craving greedy (ACG) method and improved DM are jointly adopted to minimize the loss. Simulation results verify that the proposed scheme can decrease feed-back information by a factor of 1/M while retaining performance comparable to the full feedback case, which requires M bits per subcarrier as feedback information.

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M3 - Conference contribution

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SN - 3800729091

SN - 9783800729098

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

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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 -

A joint feedback reduction scheme using delta modulation for dynamic channel allocation in OFDMA systems

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