Frequency and space precoded MIMO OFDM with substream adaptation

Xiaojing Huang; Y. Jay Guo

doi:10.1109/WCNC.2009.4917729

Frequency and space precoded MIMO OFDM with substream adaptation

Xiaojing Huang^*, Y. Jay Guo

^*Corresponding author for this work

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

Abstract

A new frequency and space precoding scheme for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is presented. For frequency precoding, the data symbols to be transmitted are divided into multiple substreams, and a predefined unitary matrix is applied to each substream to obtain different linear combinations of data symbols in the substream to gain frequency diversity. For space precoding, different precoding matrices selected from a predefined orthogonal matrix are used to allocate each frequency precoded data symbol to all transmit antennas to gain spatial diversity. The number of substreams and the corresponding data symbol mapping scheme are also adaptively determined at the receiver under varying received signal strength and MIMO channel conditions, and are made available to the transmitter through a low-rate feedback channel. Simulation results show that the proposed MIMO OFDM system with adaptive substream selection can effectively exploit both frequency and spatial diversity, and deliver the maximum system throughput.

Original language	English
Title of host publication	2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
Subtitle of host publication	Proceedings
Place of Publication	Pistacaway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-6
Number of pages	6
ISBN (Electronic)	9781424429486
ISBN (Print)	9781424429479
DOIs	https://doi.org/10.1109/WCNC.2009.4917729
Publication status	Published - 2009
Externally published	Yes
Event	2009 IEEE Wireless Communications and Networking Conference, WCNC 2009 - Budapest, Hungary Duration: 5 Apr 2009 → 8 Apr 2009

Other

Other	2009 IEEE Wireless Communications and Networking Conference, WCNC 2009
Country	Hungary
City	Budapest
Period	5/04/09 → 8/04/09

Keywords

Frequency diversity
Frequencyselective fading
Multiple input multiple output (MIMO)
Orthogonal frequency division multiplexing (OFDM)
Spatial diversity
Throughput

Access to Document

10.1109/WCNC.2009.4917729

Link to publication in Scopus

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Cite this

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title = "Frequency and space precoded MIMO OFDM with substream adaptation",

abstract = "A new frequency and space precoding scheme for multiple input multiple output (MIMO) orthogonal frequency division multiplexing (OFDM) systems is presented. For frequency precoding, the data symbols to be transmitted are divided into multiple substreams, and a predefined unitary matrix is applied to each substream to obtain different linear combinations of data symbols in the substream to gain frequency diversity. For space precoding, different precoding matrices selected from a predefined orthogonal matrix are used to allocate each frequency precoded data symbol to all transmit antennas to gain spatial diversity. The number of substreams and the corresponding data symbol mapping scheme are also adaptively determined at the receiver under varying received signal strength and MIMO channel conditions, and are made available to the transmitter through a low-rate feedback channel. Simulation results show that the proposed MIMO OFDM system with adaptive substream selection can effectively exploit both frequency and spatial diversity, and deliver the maximum system throughput.",

keywords = "Frequency diversity, Frequencyselective fading, Multiple input multiple output (MIMO), Orthogonal frequency division multiplexing (OFDM), Spatial diversity, Throughput",

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Huang, X & Guo, YJ 2009, Frequency and space precoded MIMO OFDM with substream adaptation. in 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009: Proceedings., 4917729, Institute of Electrical and Electronics Engineers (IEEE), Pistacaway, NJ, pp. 1-6, 2009 IEEE Wireless Communications and Networking Conference, WCNC 2009, Budapest, Hungary, 5/04/09. https://doi.org/10.1109/WCNC.2009.4917729

Frequency and space precoded MIMO OFDM with substream adaptation. / Huang, Xiaojing; Guo, Y. Jay.

2009 IEEE Wireless Communications and Networking Conference, WCNC 2009: Proceedings. Pistacaway, NJ : Institute of Electrical and Electronics Engineers (IEEE), 2009. p. 1-6 4917729.

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

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