Robust and low complexity packet detector design for MB-OFDM UWB

Multiband orthogonal frequency division multiplexing (MB-OFDM) ultra wideband (UWB) systems have drawn much attention for its high spectrum efficiency and multiple access capability. However, its large throughput requirement and low power spectral density result in high hardware complexity and high power consumption, which are challenges of designing the packet detector. In this paper, a novel detection method is proposed with very good detection performance in low SNR. Low cost and low power schemes are also introduced in circuit design to save 70% area and 71% power. The proposed packet detector is synthesized with UMC 0.13 mum library at 132 MHz clock frequency. The hardware cost is 56.9 K gates and the power consumption is only 11.7 mW.