In this paper, we propose an adaptive power allocation method for hybrid relay systems that
employ the amplify-and-forward and decode-and-forward protocols simultaneously. The …

Hybrid relay systems using Amplify-and-Forward protocol (AF) and Decode-and-Forward
protocol (DF) together are introduced in cooperative networks. For hybrid systems, we …

In this paper, we consider a dual-hop wireless multirelay system with decode-and-forward
(DF) cooperative protocol. Assuming the knowledge of channel gain magnitudes, we …

Hybrid relay systems using an amplify and forward (AF) protocol and a decode and forward
(DF) protocol together are introduced in cooperative networks. For this hybrid system with a …

Cooperative diversity is one of the most effective ways to mitigate the fading effect of
wireless channels and obtain the spatial gain in wireless networks. In this paper, an optimal …

The authors consider a dual-hop multi-relay cooperative relay system in this study. Both
decode-and-forward (DF) and amplify-and-forward (AF) protocols are considered. Under …

Two-way amplify-and-forward relaying is considered in this paper. We propose adaptive
power allocation (PA) algorithms to maximize the instantaneous achievable rate and …

Different effects of power allocation between the source node and all the relay nodes on the
system capacity are taken into consideration in an amplify-and-forward cooperative …

This paper proposes two optimal power allocation (OPA) schemes for two-hop wireless relay
networks operating in amplify-and-forward (AAF) manner. All the relay nodes in the network …

In order to improve the power efficiency and extend the lifetime of the two-way amplify-and-
forward (AF) relaying system, this paper proposes a distributed relay selection scheme …