Abou-Rjeily, Chadi; Daniele, Norbert; Belfiore, Jean-Claude; SOE; 200701131; Electrical And Computer Engineering; chadi.aburjeily@lau.edu.lb; Lebanese American University
Abstract:
In this paper, we examine the impact of spatial diversity on ultra-wideband (UWB) systems. This diversity is exploited by deploying two antennas at the UWB terminals. For single-antenna systems, spatial diversity is exploited in a distributed manner where a neighboring node can help the source in delivering its message to a destination. In particular, two space-time (ST) coding schemes are proposed. The first one is optimal among all totally-real codes having a constant transmitted energy per antenna. Unlike the classical approach of constructing ST codes over infinite fields, the second construction takes the structure of 2-dimensional constellations into consideration in order to propose an appropriate modulation-specific code. These schemes are associated with multi-antenna arrays and with virtual arrays based on the amplify-and-forward (AF) strategy
Citation:
Abou-Rjeily, C., Daniele, N., & Belfiore, J. C. (2006, September). Amplify-and-Forward Cooperative Diversity with Space-Time Coded UWB Systems. In Ultra-Wideband, The 2006 IEEE 2006 International Conference on (pp. 429-434). IEEE.
