This paper derives an optimal power allocation (PA) to maximize the effective average
signal-to-noise ratio (SNR) of distributed space-time coding (DSTC) in wireless relay …

The multi-way relaying networks (MWRNs) are investigated, in which multiple users
exchange their information with the help of a relay node. We constraint that all users form a …

Cooperative diversity using distributed space-time codes has been recently proposed to
form virtual antennas in order to achieve diversity gain. In this paper, we consider a multi …

In this letter, a simple distributed space-time coding scheme is introduced by allocating
random interleavers to each relay node in amplify-and-forward (AF) network. By using …

Diversity techniques are very effective tool to increase reception quality. One of the diversity
techniques is cooperative balanced space-time block coding which guarantees full diversity …

We propose a new class of C-linear distributed space-time codes for cooperative networks
using a decode-and-forward strategy. Our codes achieve full spatial diversity regardless of …

Multi-hop relay channels use multiple relay stages, each with multiple relay nodes, to
facilitate communication between a source and destination. Previously, distributed space …

We consider a wireless network in which a single source transmits its message with the help
of multiple cooperative relays to a far away destination. In our model the source broadcasts …

Space-time coding and spatial diversity schemes enhance the performance of energy
constrained multihop clustered relay networks. The purpose of this thesis is to evaluate the …

Most research on distributed space-time block coding (D-STBC) has assumed that
cooperative relay nodes are perfectly synchronized, for the delay destroys the required …