Maymouna Ben Said

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In this paper, we propose an hybrid Amplify-Decode and Forward (AF-DF) approach for cooperative Automatic Repeat reQuest (ARQ) protocols with opportunistic relaying. In the proposed scheme, relay operating mode was fixed with respect to the relay location. When a relay is close to source, it can operate in AF mode. Otherwise, relay operates in DF mode. With(More)
In this paper, we evaluate the throughput for cooperative truncated hybrid automatic repeat request HARQ protocols with opportunistic relaying. Theoretical expressions of packet error rate and the throughput of truncated ARQ and hybrid ARQ I (HARQI) are derived. Results are valid for both amplify and forward (AF) and decode and forward (DF) over Rayleigh(More)
In this paper, we analyse the performance of Amplify-and-Forward (AF) cooperative truncated Automatic Repeat reQuest (ARQ) with partial relay selection. The selected relay offers the best instantaneous signal to noise ratio (SNR) of the (source-relay) channel. We evaluate the system performance in terms of throughput and expected queueing and transmission(More)
Multi-hop relaying is an effective technique to combat the negative impacts of channel fading by providing shorter hops between peers in wireless networks. This paper investigates the modeling of a multi-hop Automatic Repeat reQuest (ARQ) system with Decode and Forward (DF) relaying. We propose a three-state Markov model, which is suitable for Rayleigh(More)
In this paper, we evaluate the throughput performance of ARQ and HARQ I schemes over a two-states Markov channel model. The derived results are compared to those obtained for a block fading channel where the channel is constant over each transmitted packet and independent during the different transmissions.
In this paper, we investigate the throughput performance of cooperative multiple input multiple output (MIMO) automatic repeat request (ARQ) using decode and forward (DF) relaying with different diversity combining schemes, specifically maximum ratio combining (MRC), selection combining (SC), generalized selection combining (GSC) and minimum selection(More)
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