Low-complexity architecture of carrier frequency offset estimation and compensation for body area network systems

This study presents a baseband communication architecture in compliance with IEEE 802.15.4 physical layer specifications for body area network systems. The proposed architecture uses preambles for a correlation operation to detect the front end of symbols and then calculates the influence of a chann...

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Veröffentlicht in:Computers & mathematics with applications (1987) Jg. 64; H. 5; S. 1400 - 1408
Hauptverfasser: Lin, Kuang-Hao, Chiu, Wei-Hao, Tseng, Jan-Dong
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Elsevier Ltd 01.09.2012
Schlagworte:
Architecture
Baseband
Body area network (BAN)
Carrier frequency offset (CFO)
Synchronization
Zigbee
Carrier frequency offset (CFO)
Baseband
Synchronization
Body area network (BAN)
Zigbee
ISSN:0898-1221, 1873-7668
Online-Zugang:Volltext
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Beschreibung
Zusammenfassung:This study presents a baseband communication architecture in compliance with IEEE 802.15.4 physical layer specifications for body area network systems. The proposed architecture uses preambles for a correlation operation to detect the front end of symbols and then calculates the influence of a channel effect, for example, a carrier frequency offset (CFO). Using a cross-correlation and auto-correlation architecture to synchronize receivers, the data subject to the carrier frequency can be compensated with a coordinate rotation digital computer (CORDIC) structure. This study includes a system simulation for the purpose of signal compensation in both the transmitting and receiving ends. Results show that the proposed design correctly detects the CFO bias in radians, with a detection error less than 0.1%, indicating that the CFO is compensated.
Bibliographie:ObjectType-Article-2
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ISSN:0898-1221
1873-7668
DOI:10.1016/j.camwa.2012.03.085