Efficient signal acquisition scheme for multi-band OFDM UWB systems

Unsun Cho, Jaeseok Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Packet detection always has been critical in the design of an OFDM receiver because failure of signal detections causes packet loss which degrades performance of receiver. In multi-band OFDM(MB-OFDM) system, first task of receiver is to perform signal detection which detects an incoming packet and acquires the TFC (time frequency code) of the packet. Auto-correlation based algorithms for signal detection are not suitable for MB-OFDM systems due to high hardware complexity. Cross-correlation requires less hardware but it is weak to frequency offset which severely degrades detection performance. A novel cross-correlation based scheme is proposed to reduce the synchronization failure probability by adopting verification mode. The proposed algorithm shows a very low synchronization failure probability around 10-4 and it is very useful for MB-OFDM synchronization which requires robust synchronization.

Original languageEnglish
Title of host publicationProceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012
Pages433-436
Number of pages4
Publication statusPublished - 2012 Dec 1
Event2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012 - Gyeongju, Korea, Republic of
Duration: 2012 Aug 272012 Aug 29

Publication series

NameProceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012

Other

Other2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012
CountryKorea, Republic of
CityGyeongju
Period12/8/2712/8/29

Fingerprint

Ultra-wideband (UWB)
Orthogonal frequency division multiplexing
Signal detection
Synchronization
Hardware
Packet loss
Autocorrelation

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications

Cite this

Cho, U., & Kim, J. (2012). Efficient signal acquisition scheme for multi-band OFDM UWB systems. In Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012 (pp. 433-436). [6418699] (Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012).
Cho, Unsun ; Kim, Jaeseok. / Efficient signal acquisition scheme for multi-band OFDM UWB systems. Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012. 2012. pp. 433-436 (Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012).
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title = "Efficient signal acquisition scheme for multi-band OFDM UWB systems",
abstract = "Packet detection always has been critical in the design of an OFDM receiver because failure of signal detections causes packet loss which degrades performance of receiver. In multi-band OFDM(MB-OFDM) system, first task of receiver is to perform signal detection which detects an incoming packet and acquires the TFC (time frequency code) of the packet. Auto-correlation based algorithms for signal detection are not suitable for MB-OFDM systems due to high hardware complexity. Cross-correlation requires less hardware but it is weak to frequency offset which severely degrades detection performance. A novel cross-correlation based scheme is proposed to reduce the synchronization failure probability by adopting verification mode. The proposed algorithm shows a very low synchronization failure probability around 10-4 and it is very useful for MB-OFDM synchronization which requires robust synchronization.",
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Cho, U & Kim, J 2012, Efficient signal acquisition scheme for multi-band OFDM UWB systems. in Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012., 6418699, Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012, pp. 433-436, 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012, Gyeongju, Korea, Republic of, 12/8/27.

Efficient signal acquisition scheme for multi-band OFDM UWB systems. / Cho, Unsun; Kim, Jaeseok.

Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012. 2012. p. 433-436 6418699 (Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

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Cho U, Kim J. Efficient signal acquisition scheme for multi-band OFDM UWB systems. In Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012. 2012. p. 433-436. 6418699. (Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012).