In this paper, an Alamouti-coded decode-and-forward protocol with optimum relay selection for three-user one destination cooperative communications is investigated. Particularly, we design the new protocol that allows the source node retransmitting the signal to the destination node at the same time as the relay node forwarding the received signal to the destination node with an Alamouti coding...

In this letter, we introduce two hybrid transmission schemes combining a passive reconfigurable intelligent surface (RIS) with decode-and-forward relaying in synergistic manner. The proposed offer flexible as well cost-and power-efficient solution for coverage extension future generation wireless networks. We present closed-form expressions the end-to-end signal-to-noise ratio of both and seque...

In this paper, we adopt the relay selection (RS) protocol proposed by Bletsas, Khisti, Reed and Lippman (2006) with Enhanced Dynamic Decode-and-Forward (EDDF) and network coding (NC) system in a two-hop two-way multi-relay network. All nodes are single-input single-output (SISO) and half-duplex, i.e., they cannot transmit and receive data simultaneously. The outage probability is analyzed and w...

In this paper, the particle filtering problem is investigated for a class of stochastic systems with multiple sensors under signal relays. To improve performance transmissions, relay deployed between each sensor and remote filter. Both amplify-and-forward (AF) decode-and-forward (DF) relays are considered certain transmission protocols. Stochastic series employed to describe multiplicative chan...