To solve the power allocation problem of multiple relays in cooperative communication, a
sparrow improvement algorithm based on small habitats is proposed. First, the small-habitat …

Cooperative communications can significantly improve the wireless transmission
performance with the help of relay nodes. In cooperative communication networks, relay …

In the recent years, cooperative communication is shown to be a promising technology to
improve the spatial diversity without additional equipments or antennas. With this …

Cooperative communication for wireless networks has gained a lot of recent interest due to
its ability to mitigate fading with exploration of spatial diversity. In this paper, we study a joint …

A joint optimization strategy for relay selection and power allocation is proposed to optimize
the performance of cooperative communication system. Convex optimization method is used …

In order to overcome fading in wireless channels and increase the performance of wireless
systems, cooperation is needed between the source node and relay node. In a cooperative …

Energy-efficient communication is an important requirement for mobile relay networks due to
the limited battery power of user terminals. This paper considers energy-efficient relaying …

Relay selection (RS) and power control are two essential parts in cooperative cognitive relay
network. RS is equal to power control in the condition that a relay cooperates with its full …

In this paper, we consider a cooperative network, where relays are capable of simultaneous
wireless information and power transfer with a power splitting scheme, and study the optimal …

Cooperative relay (CR) is a favorable technique to provide better spectral efficiency and
enhance the cell coverage area in a cost-effective manner. However, several undesired …