Publication Details

Le, N. Phuc., Tran, L. Chung. & Safaei, F. (2012). Very high data rate MB-OFDM UWB systems with transmit diversity techniques. In L. Tran (Eds.), 12nd IEEE International Symposium on Communications and Information Technologies (ISCIT 2012) (pp. 508-512). Australia: IEEE.


In this paper, the application of space time block codes in a very high data rate multiband-OFDM ultra-wideband (VHDR MB-OFDM UWB) system, where the Modified Dual Carrier Modulation (MDCM) scheme and Low Density Parity Check codes are deployed, is investigated. First, we present a new table-based mapping approach and derive soft-demapping expressions for the MDCM scheme. We then propose a space-time-frequency coded VHDR MB-OFDM UWB system by incorporating space time block codes into the conventional VHDR MB-OFDM UWB system. Numerical simulations of the system supporting a data rate of 1Gbps over the IEEE 802.15.3a channel models are implemented. The simulation results confirm the new mapping/demapping method as well as demonstrate the significant improvement in terms of packet error rate performance of the proposed system over the standard one.



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