Learn More
In this article fast fading in indoor environments is predicted, using the MR-FDPF algorithm. MR-FDPF (frequency domain par flow) is a FDTD like method that can compute indoor radio coverage at a very precise resolution (a few centimeters). Using the simulated points in particular regions, it is possible to plot the distribution of the power signal, and to(More)
SIMO algorithms ensure important increasing of radio communications robustness, but their performances strongly depend on channel propagations conditions and antenna characteristics. This article presents performances of different SIMO treatments applied on WLAN (802.11b and 802.11g) transmissions in a multi-standard and multi-channel context. These(More)
Connectivity, as an important property of wireless sensor networks (WSNs), was studied by many previous researchers using the geometric disk model which rests on the switched link model. Basically, shadowing and fading have so heavy impact on links that there are many unreliable links in WSNs. In this paper, we quantify the effect of the long but unreliable(More)
This paper describes a global system approach to easily develop, simulate and validate a multi-antennas receiver structure. Our aim is to offer a rapid evaluation for future wireless systems, including promising techniques such as SIMO or MIMO, Software Defined Radio (SDR), OFDM and Interference Cancellation. A particular focus is on the impact of RF(More)
In this paper, we deal with the analytical performance study of spatial multiplexing (SM) multiple-input multiple-output (MIMO) systems experiencing flat Rayleigh fading and log-normal shadowing. We address the problem of finding a tractable expression for the symbol error outage (SEO) in this environment. In order to obtain the SEO, a symbol error(More)
Many work has been devoted to evaluating the connectivity of ad hoc networks. In most of these works, radio links are assumed ideal, i.e. with no transmission errors. To fulfill this assumption, the reception threshold is assumed high enough so that considering valid only the radio links having a successful transmission probability above a target value. All(More)
  • 1