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Performance Improvement of Cooperative MB-OFDM System Based Coming Home Network.

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Title: Performance Improvement of Cooperative MB-OFDM System Based Coming Home Network.
Authors: Jee-Hoon Kim1 bid4u@sdc.sejong.ac.kr, Hyoung-Kyu Song1 songhk@sejong.ac.kr
Source: IEEE Transactions on Consumer Electronics. May2007, Vol. 53 Issue 2, p442-447. 6p. 1 Diagram, 3 Charts, 6 Graphs.
Subjects: Broadband communication systems, Data transmission systems, Electronic modulation, Orthogonal frequency division multiplexing, Sensor networks, Wireless communications
Abstract: Since ultra wideband (UWB) system aims at low complexity, low cost, and low power consumption, employing multiple antennas seems not to be a good approach to improving error performance for UWB devices. On the contrary, recently developed cooperative diversity technique, which profits the transmit diversity only with the existing hardware by constituting a virtual antenna array, can be a solution. However, most of the introduced cooperative techniques have a common fault of decreased transmission rate because the destination should receive the decodable compositions of symbols from the source and the relay. In this paper, we propose an alternative use of hierarchical modulation and a suitable cooperative space-time block code (C-STBC). This technique is free from the rate-loss and allows seamless cooperative communication while similar diversity gain is benefited. The proposed technique is evaluated in terms of bit error rate (BER) for multi-band orthogonal frequency division multiplexing (MB-OFDM) system. Simulation results show that cooperative system based on our technique outperforms noncooperative one when relatively reliable source-to-relay link (S-R link) is guaranteed. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Transactions on Consumer Electronics is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Performance Improvement of Cooperative MB-OFDM System Based Coming Home Network.
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  Data: <searchLink fieldCode="AR" term="%22Jee-Hoon+Kim%22">Jee-Hoon Kim</searchLink><relatesTo>1</relatesTo><i> bid4u@sdc.sejong.ac.kr</i><br /><searchLink fieldCode="AR" term="%22Hyoung-Kyu+Song%22">Hyoung-Kyu Song</searchLink><relatesTo>1</relatesTo><i> songhk@sejong.ac.kr</i>
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  Data: <searchLink fieldCode="JN" term="%22IEEE+Transactions+on+Consumer+Electronics%22">IEEE Transactions on Consumer Electronics</searchLink>. May2007, Vol. 53 Issue 2, p442-447. 6p. 1 Diagram, 3 Charts, 6 Graphs.
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  Data: <searchLink fieldCode="DE" term="%22Broadband+communication+systems%22">Broadband communication systems</searchLink><br /><searchLink fieldCode="DE" term="%22Data+transmission+systems%22">Data transmission systems</searchLink><br /><searchLink fieldCode="DE" term="%22Electronic+modulation%22">Electronic modulation</searchLink><br /><searchLink fieldCode="DE" term="%22Orthogonal+frequency+division+multiplexing%22">Orthogonal frequency division multiplexing</searchLink><br /><searchLink fieldCode="DE" term="%22Sensor+networks%22">Sensor networks</searchLink><br /><searchLink fieldCode="DE" term="%22Wireless+communications%22">Wireless communications</searchLink>
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  Data: Since ultra wideband (UWB) system aims at low complexity, low cost, and low power consumption, employing multiple antennas seems not to be a good approach to improving error performance for UWB devices. On the contrary, recently developed cooperative diversity technique, which profits the transmit diversity only with the existing hardware by constituting a virtual antenna array, can be a solution. However, most of the introduced cooperative techniques have a common fault of decreased transmission rate because the destination should receive the decodable compositions of symbols from the source and the relay. In this paper, we propose an alternative use of hierarchical modulation and a suitable cooperative space-time block code (C-STBC). This technique is free from the rate-loss and allows seamless cooperative communication while similar diversity gain is benefited. The proposed technique is evaluated in terms of bit error rate (BER) for multi-band orthogonal frequency division multiplexing (MB-OFDM) system. Simulation results show that cooperative system based on our technique outperforms noncooperative one when relatively reliable source-to-relay link (S-R link) is guaranteed. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of IEEE Transactions on Consumer Electronics is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1109/TCE.2007.381713
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      – Code: eng
        Text: English
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        PageCount: 6
        StartPage: 442
    Subjects:
      – SubjectFull: Broadband communication systems
        Type: general
      – SubjectFull: Data transmission systems
        Type: general
      – SubjectFull: Electronic modulation
        Type: general
      – SubjectFull: Orthogonal frequency division multiplexing
        Type: general
      – SubjectFull: Sensor networks
        Type: general
      – SubjectFull: Wireless communications
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      – TitleFull: Performance Improvement of Cooperative MB-OFDM System Based Coming Home Network.
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            NameFull: Hyoung-Kyu Song
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              Text: May2007
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              Y: 2007
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