In typical sensor networks, data collection and processing are separated. A sink collects from all nodes sequentially, which is very time consuming. Over-the-air computation, as a new diagram of integrates in one slot: transmit their signals simultaneously the analog wave done air. This method, although efficient, requires that arrive at sink, aligned signal magnitude so to enable an unbiased e...

New aspects arise when generalizing two-way relay network with one relay to two-way relay network with multiple relays. To study the essential features of the two-way multiple-relay network, we focus on the case of two relays in our work. The problem of how two terminals, equipped with multiple antennas, exchange messages with the help of two relays is studied. Five transmission strategies, nam...

The outage probability of dual-hop links with partial relay selection over Rayleigh fading channel in the presence of interferences is analysed. The outage expressions for amplify-and-forward (AF) and decode-and-forward (DF) relaying with relay selection, based on the instantaneous signal-to-interference ratio (SIR), are derived. Numerical results for both types of relays are presented and comp...

This paper considers an amplify-and-forward relay network and determines its maximum stable throughput. Amplify-and-forward (and other forwarding schemes) form the core mechanism for enabling cooperative communication in wireless networks, and thus determining stabilizing policies for such networks is an important problem. The interaction between nodes in this network is described in terms of c...

This paper focuses on the capacity of point-to-point relay communications wherein the transmitter is assisted by an intermediate relay. We detail the mathematical model of cutset and amplify and forward (AF) relaying strategy. We present the upper bound capacity of each relaying strategy from information theory viewpoint and also in networks with Gaussian channels. We exemplify various outer re...

To minimize total transmit power in a system while guaranteeing the outage probability at the same time in a cooperative system, we propose and analyse two threshold-based hybrid relay selection and power allocation schemes for a threenode cooperative relaying system. They are designated as: the hybrid amplify-direct-forward relaying (HADF) and incremental hybrid decode-direct-forward relaying ...