Abstract Unmanned Aerial Vehicles (UAVs) are recently used for both civilian and military
applications in worldwide. Energy Efficiency (EE) is an exceptional design approach for …

In full duplex amplify-and-forward (FD-AF) relays, self-interference from the transmit side
causes a major problem hindering its commercial spread. To alleviate the front-end …

The wireless cellular networks are limited by interference and coverage issues where the
users at the edge of the cell usually do not receive enough signal energy. To combat these …

We investigate the problem of precoding optimization in an amplify‐and‐forward multiple‐
input‐multiple‐output relay system. Most reported works on this problem focus chiefly on the …

This paper describes design methods of multiuser MIMO (multiple input multiple output) AF
(amplify and forward) relay system. Assuming the application to multi-cellular systems, the …

In this paper, we study the transmit precoding problem for multiple-input multiple-output
(MIMO) two-hop amplify-and-forward (AF) relay systems, where the source terminal (ST) …

The source and relay precoders are jointly optimized for an amplify-and-forward multiple-
input multiple-output relay system. Both the source and relay nodes employ orthogonal …

Network cooperation is known to bring multiplicative gains under certain ideal assumptions.
However, current wireless settings cope with many challenging constraints, as tight delay …

This paper presents design methods of two way AF (amplify and forward) relay systems
equipped with multi-antenna assuming perfect knowledge of CSI (channel state …

In ITS (intelligent transport system), the communication quality could be degraded by the
existence of shielding objects such as large vehicles and buildings. The relay-aided …