Double space-time transmit diversity for very high data rate MB-OFDM UWB systems

Authors

Ngoc P. Le, University of WollongongFollow
Le C. Tran, University of WollongongFollow
Farzad Safaei, University of WollongongFollow

RIS ID

60710

Publication Details

N. P. Le, L. C. Tran & F. Safaei, "Double space-time transmit diversity for very high data rate MB-OFDM UWB systems," in ISCIT 2012: 12nd IEEE International Symposium on Communications and Information Technologies, 2012, pp. 1-5.

Abstract

In this paper, we investigate a multiband-orthogonal frequency division multiplexing ultra-wideband (MB-OFDM UWB) system with very high data rates (VHDR) of several gigabits per second (Gbps). We propose a DSTTD-based VHDR MB-OFDM UWB system by incorporating a double space-time transmit diversity (DSTTD) scheme into the conventional MB-OFDM UWB system. At the receiver, an efficient soft-demapper that takes into consideration the noise enhancement due to a zero-forcing equalization is developed. Numerical simulations of the proposed system at a very high data rate of 2.Gbps over the IEEE 802.15.3a channel models are implemented. The simulation results show that this system could achieve a very good performance in a low signal-to-noise ratio (SNR) region.