Time-varying multichirp rate modulation for multiple access systems

Hao Shen; Srinivasa Machineni; Charu Gupta; Antonia Papandreou-Suppappola

doi:10.1109/LSP.2004.826638

Time-varying multichirp rate modulation for multiple access systems

Hao Shen, Srinivasa Machineni, Charu Gupta, Antonia Papandreou-Suppappola

Electrical Engineering

Research output: Contribution to journal › Letter › peer-review

39 Scopus citations

Abstract

We propose a modulation scheme that is based on wideband time-varying chirp signals for use in frequency-hopped code division multiple-access systems. The scheme is designed such that each user is assigned unique modulating chirp signals that efficiently occupy the hop bandwidth for identification at the receiver. We explain how the chirp modulation reduces multiple-access interference, and we demonstrate with simulations our improved performance for various fading channels. The bandwidth efficiency of the chirp signaling is further exploited by assigning multiple chirp rates to each user.

Original language	English (US)
Pages (from-to)	497-500
Number of pages	4
Journal	IEEE Signal Processing Letters
Volume	11
Issue number	5
DOIs	https://doi.org/10.1109/LSP.2004.826638
State	Published - May 2004

Keywords

Frequency-hopped code division multiple-access (FH-CDMA)
Linear chirp
Multiple-access interference (MAI)
Time varying

ASJC Scopus subject areas

Signal Processing
Electrical and Electronic Engineering
Applied Mathematics

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10.1109/LSP.2004.826638

Cite this

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title = "Time-varying multichirp rate modulation for multiple access systems",

abstract = "We propose a modulation scheme that is based on wideband time-varying chirp signals for use in frequency-hopped code division multiple-access systems. The scheme is designed such that each user is assigned unique modulating chirp signals that efficiently occupy the hop bandwidth for identification at the receiver. We explain how the chirp modulation reduces multiple-access interference, and we demonstrate with simulations our improved performance for various fading channels. The bandwidth efficiency of the chirp signaling is further exploited by assigning multiple chirp rates to each user.",

keywords = "Frequency-hopped code division multiple-access (FH-CDMA), Linear chirp, Multiple-access interference (MAI), Time varying",

author = "Hao Shen and Srinivasa Machineni and Charu Gupta and Antonia Papandreou-Suppappola",

note = "Funding Information: Manuscript received May 19, 2003; revised August 11, 2003. This work was supported by the National Science Foundation under CAREER Award CCR-0134002. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Erchin Serpedin.",

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language = "English (US)",

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T1 - Time-varying multichirp rate modulation for multiple access systems

AU - Shen, Hao

AU - Machineni, Srinivasa

AU - Gupta, Charu

AU - Papandreou-Suppappola, Antonia

N1 - Funding Information: Manuscript received May 19, 2003; revised August 11, 2003. This work was supported by the National Science Foundation under CAREER Award CCR-0134002. The associate editor coordinating the review of this manuscript and approving it for publication was Prof. Erchin Serpedin.

PY - 2004/5

Y1 - 2004/5

N2 - We propose a modulation scheme that is based on wideband time-varying chirp signals for use in frequency-hopped code division multiple-access systems. The scheme is designed such that each user is assigned unique modulating chirp signals that efficiently occupy the hop bandwidth for identification at the receiver. We explain how the chirp modulation reduces multiple-access interference, and we demonstrate with simulations our improved performance for various fading channels. The bandwidth efficiency of the chirp signaling is further exploited by assigning multiple chirp rates to each user.

AB - We propose a modulation scheme that is based on wideband time-varying chirp signals for use in frequency-hopped code division multiple-access systems. The scheme is designed such that each user is assigned unique modulating chirp signals that efficiently occupy the hop bandwidth for identification at the receiver. We explain how the chirp modulation reduces multiple-access interference, and we demonstrate with simulations our improved performance for various fading channels. The bandwidth efficiency of the chirp signaling is further exploited by assigning multiple chirp rates to each user.

KW - Frequency-hopped code division multiple-access (FH-CDMA)

KW - Linear chirp

KW - Multiple-access interference (MAI)

KW - Time varying

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JO - IEEE Signal Processing Letters

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Time-varying multichirp rate modulation for multiple access systems

Abstract

Keywords

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