Michel Nahas

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When distributed cooperative nodes are communicating with a destination, the received signal can be asynchronous due to the propagation or processing delays. This can destroy the space time block code properties designed initially for synchronous case. In this paper, a new construction method of bounded delay tolerant codes is presented. These new codes(More)
This paper investigates the opportunities of using the Digital-RoF for LTE-Advanced and beyond systems. It shows that the DRoF is an enabler of several LTE-Advanced features that need high information exchanges and coordination between base stations. It can also reduce the network deployment costs and increase the energy saving. However, this implies(More)
In wireless cooperative networks, the asynchronism between the relays can be a source of diversity which is similar in its essence to the multipath diversity of frequency selective channels. In this context, an asynchronous two-relay cooperative wireless network is studied for Decode-and-Forward (DF) and Amplify-and-Forward (AF) protocols. The outage(More)
With the growth of cellular networks and emergence of new technologies, the power consumption of mobile communication networks has become an important and worrying topic that should be taken into consideration in any future cellular evolution. Recently, many solutions were proposed in the literature to reduce the power in cellular communications while(More)
In wireless cooperative networks, the asynchronism between the relays can be a source of diversity which is similar in its essence to the multipath diversity of frequency selective channels. In this context, an asynchronous two-relay two-hop cooperative wireless network using the Amplify-and-Forward protocol is studied. The outage probability in the high(More)
For distributed antennas based communications, the received signal from different sources can be asynchronous due to the propagation or processing delays. This can destroy the space time block code properties designed initially for synchronous case. In this paper, we introduce the delay-diversity tradeoff showing that it is possible to preserve the maximum(More)