Adaptive OFDMA for downlink underwater acoustic communications

Yuzhi Zhang; Yi Huang; Lei Wan; Hao Zhou; Shengli Zhou; Xiaohong Shen; Haiyan Wang

doi:10.1109/OCEANS.2014.7003120

Adaptive OFDMA for downlink underwater acoustic communications

Yuzhi Zhang, Yi Huang, Lei Wan, Hao Zhou, Shengli Zhou, Xiaohong Shen, Haiyan Wang

School of Marine Science and Technology

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

9 Scopus citations

Abstract

Multiuser communication has been an important research area of underwater acoustic communications and networking. This paper studies the use of adaptive OFDMA in a multiuser downlink scenario, where a central node sends data to multiple distributed nodes simultaneously. The reduction of channel feedback via clustering and quantization is considered, and an interleaved power-bit loading algorithm is presented to jointly assign the data subcarriers to different users and allocate the power and bits on each subcarrier. Simulation results show the performance improvement due to subcarrier allocation with and without additional power and bit loading. An experiment conducted in a swimming pool illustrates potential benefits and challenges of harvesting the multiuser diversity through adaptive subcarrier allocation.

Original language	English
Title of host publication	2014 Oceans - St. John's, OCEANS 2014
Publisher	Institute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)	9781479949182
DOIs	https://doi.org/10.1109/OCEANS.2014.7003120
State	Published - 6 Jan 2015
Event	2014 Oceans - St. John's, OCEANS 2014 - St. John's, Canada Duration: 14 Sep 2014 → 19 Sep 2014

Publication series

Name	2014 Oceans - St. John's, OCEANS 2014

Conference

Conference	2014 Oceans - St. John's, OCEANS 2014
Country/Territory	Canada
City	St. John's
Period	14/09/14 → 19/09/14

Keywords

OFDMA
power and bit loading
subcarrier allocation
Underwater acoustic communications

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10.1109/OCEANS.2014.7003120

Cite this

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title = "Adaptive OFDMA for downlink underwater acoustic communications",

abstract = "Multiuser communication has been an important research area of underwater acoustic communications and networking. This paper studies the use of adaptive OFDMA in a multiuser downlink scenario, where a central node sends data to multiple distributed nodes simultaneously. The reduction of channel feedback via clustering and quantization is considered, and an interleaved power-bit loading algorithm is presented to jointly assign the data subcarriers to different users and allocate the power and bits on each subcarrier. Simulation results show the performance improvement due to subcarrier allocation with and without additional power and bit loading. An experiment conducted in a swimming pool illustrates potential benefits and challenges of harvesting the multiuser diversity through adaptive subcarrier allocation.",

keywords = "OFDMA, power and bit loading, subcarrier allocation, Underwater acoustic communications",

author = "Yuzhi Zhang and Yi Huang and Lei Wan and Hao Zhou and Shengli Zhou and Xiaohong Shen and Haiyan Wang",

note = "Publisher Copyright: {\textcopyright} 2014 IEEE.; 2014 Oceans - St. John's, OCEANS 2014 ; Conference date: 14-09-2014 Through 19-09-2014",

year = "2015",

month = jan,

day = "6",

doi = "10.1109/OCEANS.2014.7003120",

language = "英语",

series = "2014 Oceans - St. John's, OCEANS 2014",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

booktitle = "2014 Oceans - St. John's, OCEANS 2014",

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Zhang, Y, Huang, Y, Wan, L, Zhou, H, Zhou, S, Shen, X & Wang, H 2015, Adaptive OFDMA for downlink underwater acoustic communications. in 2014 Oceans - St. John's, OCEANS 2014., 7003120, 2014 Oceans - St. John's, OCEANS 2014, Institute of Electrical and Electronics Engineers Inc., 2014 Oceans - St. John's, OCEANS 2014, St. John's, Canada, 14/09/14. https://doi.org/10.1109/OCEANS.2014.7003120

TY - GEN

T1 - Adaptive OFDMA for downlink underwater acoustic communications

AU - Zhang, Yuzhi

AU - Huang, Yi

AU - Wan, Lei

AU - Zhou, Hao

AU - Zhou, Shengli

AU - Shen, Xiaohong

AU - Wang, Haiyan

PY - 2015/1/6

Y1 - 2015/1/6

N2 - Multiuser communication has been an important research area of underwater acoustic communications and networking. This paper studies the use of adaptive OFDMA in a multiuser downlink scenario, where a central node sends data to multiple distributed nodes simultaneously. The reduction of channel feedback via clustering and quantization is considered, and an interleaved power-bit loading algorithm is presented to jointly assign the data subcarriers to different users and allocate the power and bits on each subcarrier. Simulation results show the performance improvement due to subcarrier allocation with and without additional power and bit loading. An experiment conducted in a swimming pool illustrates potential benefits and challenges of harvesting the multiuser diversity through adaptive subcarrier allocation.

AB - Multiuser communication has been an important research area of underwater acoustic communications and networking. This paper studies the use of adaptive OFDMA in a multiuser downlink scenario, where a central node sends data to multiple distributed nodes simultaneously. The reduction of channel feedback via clustering and quantization is considered, and an interleaved power-bit loading algorithm is presented to jointly assign the data subcarriers to different users and allocate the power and bits on each subcarrier. Simulation results show the performance improvement due to subcarrier allocation with and without additional power and bit loading. An experiment conducted in a swimming pool illustrates potential benefits and challenges of harvesting the multiuser diversity through adaptive subcarrier allocation.

KW - OFDMA

KW - power and bit loading

KW - subcarrier allocation

KW - Underwater acoustic communications

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U2 - 10.1109/OCEANS.2014.7003120

DO - 10.1109/OCEANS.2014.7003120

M3 - 会议稿件

AN - SCOPUS:84921775453

T3 - 2014 Oceans - St. John's, OCEANS 2014

BT - 2014 Oceans - St. John's, OCEANS 2014

PB - Institute of Electrical and Electronics Engineers Inc.

T2 - 2014 Oceans - St. John's, OCEANS 2014

Y2 - 14 September 2014 through 19 September 2014

ER -

Adaptive OFDMA for downlink underwater acoustic communications

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Keywords

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