TY - GEN
T1 - Efficient signal acquisition scheme for multi-band OFDM UWB systems
AU - Cho, Unsun
AU - Kim, Jaeseok
PY - 2012
Y1 - 2012
N2 - 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.
AB - 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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M3 - Conference contribution
AN - SCOPUS:84874138133
SN - 9788994364179
T3 - Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012
SP - 433
EP - 436
BT - Proceedings - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012
T2 - 2012 8th International Conference on Computing and Networking Technology (INC, ICCIS and ICMIC), ICCNT 2012
Y2 - 27 August 2012 through 29 August 2012
ER -