Presentation 2009-01-23
Overhead reduction for cyclostationarity-inducing transmission method
Koji MAEDA, Shunji MIURA, Tatsuo FURUNO,
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Abstract(in English) In previous work, authors proposed a cyclostationarity-inducing transmission method that enables the receiver to distinguish among different signals that use a common orthogonal frequency division multiplexing (OFDM)-based air interface. This method is based on dedicating subcarriers at each OFDM symbol to the transmission of specific signals so that the whole OFDM frame comprising several OFDM symbols exhibits cyclostationarity at pre-selected cycle frequencies. In this method, however, no data symbols are able to be transmitted on the dedicated subcarriers, and it incurs the large overhead. Therefore, in this paper, we propose another cyclostationarity-inducing transmission method with lower overhead than the previously-proposed method. Although the proposed method also dedicates some subcarriers, the dedicated subcarriers transmit data symbols, which are copied from non-dedicated subcarriers and phase-rotated. This paper shows that the proposed method can create various CAF peak patterns by choosing the periodicity of the phase rotation, and the proposed method even with half amount of overhead can achieve the detection probability almost equal to that of the previous-proposed method.
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Keyword(in English) signal classification / cyclostationarity-inducing transmission / OFDM transmission / overhead reduction
Paper # SR2008-79
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Conference Date 2009/1/15(1days)
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Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Overhead reduction for cyclostationarity-inducing transmission method
Sub Title (in English)
Keyword(1) signal classification
Keyword(2) cyclostationarity-inducing transmission
Keyword(3) OFDM transmission
Keyword(4) overhead reduction
1st Author's Name Koji MAEDA
1st Author's Affiliation NTT DOCOMO, Inc.()
2nd Author's Name Shunji MIURA
2nd Author's Affiliation NTT DOCOMO, Inc.
3rd Author's Name Tatsuo FURUNO
3rd Author's Affiliation NTT DOCOMO, Inc.
Date 2009-01-23
Paper # SR2008-79
Volume (vol) vol.108
Number (no) 400
Page pp.pp.-
#Pages 6
Date of Issue