Very high data rate MB-OFDM UWB systems with transmit diversity techniques

Authors

Ngoc Phuc Le, University Of WollongongFollow
Le Chung Tran, University of WollongongFollow
Farzad Safaei, University of WollongongFollow

RIS ID

71430

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.

Abstract

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.