Advanced Dynamic Binary Interleaving Codes for UWB-OFDM WPAN Systems

This paper presents a novel binary interleaving process foreseen as a pseudo spreading technique against interference noise and selective channels. The system addresses time-variant binary block interleaving codes considered here for UWB-OFDM transmissions as an alternative to the ECMA-368 standard binary cyclic shifter stage. The interleaving technique denoted dynamic binary interleaving code (DBIC), is designed and assessed on ECMA-368 PHY layer and a optimized UWB-OFDM system based on spectrum efficiency optimization combined with advanced interleaving techniques. DBIC considers a recent interleaving technique denoted turbo-like interleaver (TLI) allowing multiple interleaving pattern generation into a flexible way. To achieve multi Gbps on the air interfaces, 16 QAM modulated sub-carriers are considered involving ECMA-368 interleaver adaptation. Interleaving benchmarking is performed upon these 2 systems operating in the 60 GHz RF band.