A Novel Frame Synchronization for MIMO-OFDM Transmission System
Yuhei Nagao, Kenichi Kubo, Masayuki Kurosaki, Hiroshi Ochi · ITC-CSCC :International Technical Conference on Circuits Systems, Computers and Communications · 2009
MIMO-OFDM system, such as IEEE802.11n wireless LAN and IEEE802.16e wireless MAN, employs cyclic shift diversity transmission in order to avoid unintended beam-forming. However, such system reduces the accuracy of frame synchronization due to large value of channel root mean square (RMS) delay spread, which is observed at receiver. This paper proposes a novel frame synchronization scheme for high accuracy in large RMS delay spread channel environment. The simulation results show that the proposed scheme can improve the performance of the packet error rate and synchronization error rate in IEEE802.11 TGn channel model B with the RMS delay spread of 15[㎱] and model E with RMS delay spread of 100[㎱].