M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search

Chang Kyung Sung; Hajime Suzuki; Iain B. Collings

doi:10.1109/VETECS.2012.6240244

M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search

Chang Kyung Sung^*, Hajime Suzuki, Iain B. Collings

^*Corresponding author for this work

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

1 Citation (Scopus)

Abstract

In this paper, we consider a channel quantization problem that selects the best codeword representing a group of consecutive subcarriers (cluster) in multiuser MIMO-OFDM systems. The clustering is required to reduce the amount of feedback information in practical OFDM systems. Based on M-PSK based codebooks, we propose a new codeword search algorithm for the clustered MIMO-OFDM with complexity of O(2 ^NT) compared to the complexity of O(M ^NT) for conventional exhaustive search, where N-T denotes the number of transmit antennas. Through simulations, the proposed clustered codeword selection scheme for the multiuser MIMO-OFDM shows up to 54% performance improvement in throughput compared with the conventional MIMO-OFDM system that performs the channel quantization only on predetermined pilot subcarriers.

Original language	English
Title of host publication	IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Number of pages	5
ISBN (Electronic)	9781467309905
ISBN (Print)	9781467309899
DOIs	https://doi.org/10.1109/VETECS.2012.6240244
Publication status	Published - 2012
Externally published	Yes
Event	IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Yokohama, Japan Duration: 6 May 2012 → 9 Jun 2012

Other

Other	IEEE 75th Vehicular Technology Conference, VTC Spring 2012
Country/Territory	Japan
City	Yokohama
Period	6/05/12 → 9/06/12

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10.1109/VETECS.2012.6240244

Cite this

@inproceedings{5997592576694a09b8a8cdae095a8a3f,

title = "M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search",

abstract = "In this paper, we consider a channel quantization problem that selects the best codeword representing a group of consecutive subcarriers (cluster) in multiuser MIMO-OFDM systems. The clustering is required to reduce the amount of feedback information in practical OFDM systems. Based on M-PSK based codebooks, we propose a new codeword search algorithm for the clustered MIMO-OFDM with complexity of O(2 NT) compared to the complexity of O(M NT) for conventional exhaustive search, where N-T denotes the number of transmit antennas. Through simulations, the proposed clustered codeword selection scheme for the multiuser MIMO-OFDM shows up to 54% performance improvement in throughput compared with the conventional MIMO-OFDM system that performs the channel quantization only on predetermined pilot subcarriers.",

author = "Sung, {Chang Kyung} and Hajime Suzuki and Collings, {Iain B.}",

year = "2012",

doi = "10.1109/VETECS.2012.6240244",

language = "English",

isbn = "9781467309899",

booktitle = "IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings",

publisher = "Institute of Electrical and Electronics Engineers (IEEE)",

address = "United States",

note = "IEEE 75th Vehicular Technology Conference, VTC Spring 2012 ; Conference date: 06-05-2012 Through 09-06-2012",

}

Sung, CK, Suzuki, H & Collings, IB 2012, M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search. in IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings. Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, IEEE 75th Vehicular Technology Conference, VTC Spring 2012, Yokohama, Japan, 6/05/12. https://doi.org/10.1109/VETECS.2012.6240244

M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search. / Sung, Chang Kyung; Suzuki, Hajime; Collings, Iain B.
IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2012.

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

TY - GEN

T1 - M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search

AU - Sung, Chang Kyung

AU - Suzuki, Hajime

AU - Collings, Iain B.

PY - 2012

Y1 - 2012

N2 - In this paper, we consider a channel quantization problem that selects the best codeword representing a group of consecutive subcarriers (cluster) in multiuser MIMO-OFDM systems. The clustering is required to reduce the amount of feedback information in practical OFDM systems. Based on M-PSK based codebooks, we propose a new codeword search algorithm for the clustered MIMO-OFDM with complexity of O(2 NT) compared to the complexity of O(M NT) for conventional exhaustive search, where N-T denotes the number of transmit antennas. Through simulations, the proposed clustered codeword selection scheme for the multiuser MIMO-OFDM shows up to 54% performance improvement in throughput compared with the conventional MIMO-OFDM system that performs the channel quantization only on predetermined pilot subcarriers.

AB - In this paper, we consider a channel quantization problem that selects the best codeword representing a group of consecutive subcarriers (cluster) in multiuser MIMO-OFDM systems. The clustering is required to reduce the amount of feedback information in practical OFDM systems. Based on M-PSK based codebooks, we propose a new codeword search algorithm for the clustered MIMO-OFDM with complexity of O(2 NT) compared to the complexity of O(M NT) for conventional exhaustive search, where N-T denotes the number of transmit antennas. Through simulations, the proposed clustered codeword selection scheme for the multiuser MIMO-OFDM shows up to 54% performance improvement in throughput compared with the conventional MIMO-OFDM system that performs the channel quantization only on predetermined pilot subcarriers.

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SN - 9781467309899

BT - IEEE 75th Vehicular Technology Conference, VTC Spring 2012 - Proceedings

PB - Institute of Electrical and Electronics Engineers (IEEE)

CY - Piscataway, NJ

T2 - IEEE 75th Vehicular Technology Conference, VTC Spring 2012

Y2 - 6 May 2012 through 9 June 2012

ER -

M-PSK codebook based clustered MIMO-OFDM SDMA with efficient codebook search

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