Sequence Detection with Variable Sampling Rate and Block Length Under ISI Channels.
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| Title: | Sequence Detection with Variable Sampling Rate and Block Length Under ISI Channels. |
|---|---|
| Authors: | Wang, Jui Teng1 (AUTHOR) jtwang@ncnu.edu.tw |
| Source: | Circuits, Systems & Signal Processing. Mar2024, Vol. 43 Issue 3, p1980-1992. 13p. |
| Subjects: | Interstimulus interval, Additive white Gaussian noise channels, Signal sampling |
| Abstract: | We propose, in this paper, the sequence detection scheme with variable sampling rate and block length under inter-symbol interference (ISI) channels. In the proposed scheme, the receiver samples the received signal at the rate that is a times the symbol rate and performs sequence detection for a sequence of transmitted symbols; in addition, the sequence is divided into blocks with each block containing M transmitted symbols, and the receiver detects each block on the basis of N received samples. On the basis of the proposed scheme, we derive the condition which explains how to utilize the relationship among sampling rate, block length and channel length (which is equal to L + 1 symbol periods) to remove the impact of inter-block ISI (IBI). This IBI-free condition implies that if a ≥ 1 + 2 L M + L , increasing a can remove the impact of IBI so that the achievable rate for the scheme with IBI can approach the achievable rate for the scheme without IBI. We further show that the combination of oversampling and unit block length ( M = 1 ) gives the maximal achievable rate, and the maximal achievable rate is equal to the channel capacity of AWGN channel. Moreover, it is shown that the maximal achievable rate decreases as M increases, and this result implies that in addition to increasing the complexity, increasing M can also degrade the performance. [ABSTRACT FROM AUTHOR] |
| Copyright of Circuits, Systems & Signal Processing is the property of Springer Nature 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.) | |
| Database: | Engineering Source |
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| Header | DbId: egs DbLabel: Engineering Source An: 175675441 AccessLevel: 6 PubType: Academic Journal PubTypeId: academicJournal PreciseRelevancyScore: 0 |
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| Items | – Name: Title Label: Title Group: Ti Data: Sequence Detection with Variable Sampling Rate and Block Length Under ISI Channels. – Name: Author Label: Authors Group: Au Data: <searchLink fieldCode="AR" term="%22Wang%2C+Jui+Teng%22">Wang, Jui Teng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> jtwang@ncnu.edu.tw</i> – Name: TitleSource Label: Source Group: Src Data: <searchLink fieldCode="JN" term="%22Circuits%2C+Systems+%26+Signal+Processing%22">Circuits, Systems & Signal Processing</searchLink>. Mar2024, Vol. 43 Issue 3, p1980-1992. 13p. – Name: Subject Label: Subjects Group: Su Data: <searchLink fieldCode="DE" term="%22Interstimulus+interval%22">Interstimulus interval</searchLink><br /><searchLink fieldCode="DE" term="%22Additive+white+Gaussian+noise+channels%22">Additive white Gaussian noise channels</searchLink><br /><searchLink fieldCode="DE" term="%22Signal+sampling%22">Signal sampling</searchLink> – Name: Abstract Label: Abstract Group: Ab Data: We propose, in this paper, the sequence detection scheme with variable sampling rate and block length under inter-symbol interference (ISI) channels. In the proposed scheme, the receiver samples the received signal at the rate that is a times the symbol rate and performs sequence detection for a sequence of transmitted symbols; in addition, the sequence is divided into blocks with each block containing M transmitted symbols, and the receiver detects each block on the basis of N received samples. On the basis of the proposed scheme, we derive the condition which explains how to utilize the relationship among sampling rate, block length and channel length (which is equal to L + 1 symbol periods) to remove the impact of inter-block ISI (IBI). This IBI-free condition implies that if a ≥ 1 + 2 L M + L , increasing a can remove the impact of IBI so that the achievable rate for the scheme with IBI can approach the achievable rate for the scheme without IBI. We further show that the combination of oversampling and unit block length ( M = 1 ) gives the maximal achievable rate, and the maximal achievable rate is equal to the channel capacity of AWGN channel. Moreover, it is shown that the maximal achievable rate decreases as M increases, and this result implies that in addition to increasing the complexity, increasing M can also degrade the performance. [ABSTRACT FROM AUTHOR] – Name: AbstractSuppliedCopyright Label: Group: Ab Data: <i>Copyright of Circuits, Systems & Signal Processing is the property of Springer Nature 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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| RecordInfo | BibRecord: BibEntity: Identifiers: – Type: doi Value: 10.1007/s00034-023-02553-6 Languages: – Code: eng Text: English PhysicalDescription: Pagination: PageCount: 13 StartPage: 1980 Subjects: – SubjectFull: Interstimulus interval Type: general – SubjectFull: Additive white Gaussian noise channels Type: general – SubjectFull: Signal sampling Type: general Titles: – TitleFull: Sequence Detection with Variable Sampling Rate and Block Length Under ISI Channels. Type: main BibRelationships: HasContributorRelationships: – PersonEntity: Name: NameFull: Wang, Jui Teng IsPartOfRelationships: – BibEntity: Dates: – D: 01 M: 03 Text: Mar2024 Type: published Y: 2024 Identifiers: – Type: issn-print Value: 0278081X Numbering: – Type: volume Value: 43 – Type: issue Value: 3 Titles: – TitleFull: Circuits, Systems & Signal Processing Type: main |
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