It is now well known that employing channel adaptive signaling in wireless communication
systems can yield large improvements in almost any performance metric. Unfortunately …

This paper is on relay selection schemes for wireless relay networks. First, we derive the
diversity of many single-relay selection schemes in the literature. Then, we generalize the …

This paper deals with beamforming in wireless relay networks with perfect channel
information at the relays, receiver, and transmitter if there is a direct link between the …

Cooperative communication with single relay selection is a simple but effective
communication scheme for energy-constrained networks. In this paper, we propose a novel …

The authors propose a physical-datalink cross-layer resource allocation scheme over
wireless relay networks for quality-of-service (QoS) guarantees. By integrating information …

In this paper, we consider a clustered wireless sensor network where sensors within each
cluster relay data packets to nearby clusters using cooperative communications. We …

We consider a Rayleigh fading wireless relay channel where communication is constrained
by delay and average power limitations. Assuming partial channel state information at the …

We consider the problem of beamforming codebook design for limited feedback half-duplex
multiple-input multiple output (MIMO) amplify-and-forward (AF) relay system. In the first part …

Although there has been a growing interest on cooperative diversity, the current literature is
mainly limited to the results obtained for Rayleigh, Rician, or Nakagami fading channels. In …

This paper is on quantized beamforming in wireless amplify-and-forward (AF) relay
networks. We use the generalized Lloyd algorithm (GLA) to design the quantizer of the …