Spreading with Walsh code for π/2-DBPSK modulated WBAN systems

Andrew Zhang; Leif W. Hanlen; Xiaojing Huang

doi:10.1109/PIMRCW.2010.5670514

Spreading with Walsh code for π/2-DBPSK modulated WBAN systems

Andrew Zhang^*, Leif W. Hanlen, Xiaojing Huang

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

The IEEE has proposed a narrowband PHY for the IEEE standard of wireless body area network. To maintain small phase transition of the π/2-DBPSK modulated signal and ensure simple receiver design, repetition code is used where lower data rate is needed. In this paper, we suggest to replace the repetition code by Walsh code to improve the interference cancelation capability of the system. Spreading-before-modulation approach is suggested to retain the merit of small phase transition. Three receivers, including frequency discriminator, differential demodulator and coherent receiver, are developed for the proposed scheme. We show that the proposed scheme, with slightly increased complexity, can improve the signal to interference ratio by about 2 dB, which increases with increasing packet length.

Original language	English
Title of host publication	2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010
Pages	84-88
Number of pages	5
DOIs	https://doi.org/10.1109/PIMRCW.2010.5670514
Publication status	Published - 2010
Event	2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010 - Istanbul, Turkey Duration: 26 Sept 2010 → 30 Sept 2010

Other

Other	2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010
Country/Territory	Turkey
City	Istanbul
Period	26/09/10 → 30/09/10

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10.1109/PIMRCW.2010.5670514

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title = "Spreading with Walsh code for π/2-DBPSK modulated WBAN systems",

abstract = "The IEEE has proposed a narrowband PHY for the IEEE standard of wireless body area network. To maintain small phase transition of the π/2-DBPSK modulated signal and ensure simple receiver design, repetition code is used where lower data rate is needed. In this paper, we suggest to replace the repetition code by Walsh code to improve the interference cancelation capability of the system. Spreading-before-modulation approach is suggested to retain the merit of small phase transition. Three receivers, including frequency discriminator, differential demodulator and coherent receiver, are developed for the proposed scheme. We show that the proposed scheme, with slightly increased complexity, can improve the signal to interference ratio by about 2 dB, which increases with increasing packet length.",

author = "Andrew Zhang and Hanlen, {Leif W.} and Xiaojing Huang",

year = "2010",

doi = "10.1109/PIMRCW.2010.5670514",

language = "English",

isbn = "9781424491162",

pages = "84--88",

booktitle = "2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010",

note = "2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010 ; Conference date: 26-09-2010 Through 30-09-2010",

}

Zhang, A, Hanlen, LW & Huang, X 2010, Spreading with Walsh code for π/2-DBPSK modulated WBAN systems. in 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010., 5670514, pp. 84-88, 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010, Istanbul, Turkey, 26/09/10. https://doi.org/10.1109/PIMRCW.2010.5670514

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AU - Zhang, Andrew

AU - Hanlen, Leif W.

AU - Huang, Xiaojing

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N2 - The IEEE has proposed a narrowband PHY for the IEEE standard of wireless body area network. To maintain small phase transition of the π/2-DBPSK modulated signal and ensure simple receiver design, repetition code is used where lower data rate is needed. In this paper, we suggest to replace the repetition code by Walsh code to improve the interference cancelation capability of the system. Spreading-before-modulation approach is suggested to retain the merit of small phase transition. Three receivers, including frequency discriminator, differential demodulator and coherent receiver, are developed for the proposed scheme. We show that the proposed scheme, with slightly increased complexity, can improve the signal to interference ratio by about 2 dB, which increases with increasing packet length.

AB - The IEEE has proposed a narrowband PHY for the IEEE standard of wireless body area network. To maintain small phase transition of the π/2-DBPSK modulated signal and ensure simple receiver design, repetition code is used where lower data rate is needed. In this paper, we suggest to replace the repetition code by Walsh code to improve the interference cancelation capability of the system. Spreading-before-modulation approach is suggested to retain the merit of small phase transition. Three receivers, including frequency discriminator, differential demodulator and coherent receiver, are developed for the proposed scheme. We show that the proposed scheme, with slightly increased complexity, can improve the signal to interference ratio by about 2 dB, which increases with increasing packet length.

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DO - 10.1109/PIMRCW.2010.5670514

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SN - 9781424491162

SP - 84

EP - 88

BT - 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010

T2 - 2010 IEEE 21st International Symposium on Personal, Indoor and Mobile Radio Communications Workshops, PIMRC 2010

Y2 - 26 September 2010 through 30 September 2010

ER -

Spreading with Walsh code for π/2-DBPSK modulated WBAN systems

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