We consider a multiuser multirelay network where each source communicates with its
destination via an assigned relay. To ensure fairness among the users, the minimum of the …

In this paper, we consider an amplify-and-forward wireless relay system where multiple
source nodes communicate with their corresponding destination nodes with the help of relay …

Optimal power allocation for multi-user amplify-and-forward wireless relay networks in which
multiple source-destination pairs are assisted by a set of relays is investigated. Two relay …

For a multi-user multi-relay network with a total relay power constraint, we investigate the
relay power allocation (PA) that maximizes the network sum-rate. Different users use …

This paper considers the joint design of user power allocation and relay beamforming in
relaying communications, in which multiple pairs of single-antenna users exchange …

Because of its outstanding performance in extending coverage and reducing transmit power,
wireless relay cooperation is deemed as one of the promising techniques to realize green …

We consider the problem of jointly optimizing channel pairing, channel-user assignment,
and power allocation, to maximize the weighted sum-rate, in a single-relay cooperative …

Green communications have emerged as a demanding concept for improving the network
energy efficiency (EE). In this paper, a pricing-based approach is investigated to achieve …

The power allocation problem for multiuser wireless networks is considered under the
assumption of amplify-and-forward cooperative diversity. Specifically, optimal centralized …

A wireless relay network with one source, one relay and one destination is considered,
where nodes communicate via N orthogonal channels. We develop optimal power allocation …