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

Zhang, A; Hanlen, LW; Huang, X

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

Zhang, A

Hanlen, LW Huang, X

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Publication Type:: Conference Proceeding
Citation:: IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2010, pp. 84 - 88
Issue Date:: 2010-12-01

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Field	Value	Language
dc.contributor.author	Zhang, A https://orcid.org/0000-0002-6102-3762	en_US
dc.contributor.author	Hanlen, LW	en_US
dc.contributor.author	Huang, X https://orcid.org/0000-0001-6869-5732	en_US
dc.date.issued	2010-12-01	en_US
dc.identifier.citation	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC, 2010, pp. 84 - 88	en_US
dc.identifier.isbn	9781424491162	en_US
dc.identifier.uri	http://hdl.handle.net/10453/137912
dc.description.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. ©2010 IEEE.	en_US
dc.relation.ispartof	IEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC	en_US
dc.relation.isbasedon	10.1109/PIMRCW.2010.5670514	en_US
dc.rights	info:eu-repo/semantics/openAccess
dc.title	Spreading with Walsh code for π/2-DBPSK modulated WBAN systems	en_US
dc.type	Conference Proceeding
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology
pubs.organisational-group	/University of Technology Sydney/Faculty of Engineering and Information Technology/School of Electrical and Data Engineering
pubs.organisational-group	/University of Technology Sydney/Strength - GBDTC - Global Big Data Technologies
utslib.copyright.status	open_access	*
pubs.publication-status	Published	en_US

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. ©2010 IEEE.

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