The concept of physical-layer network coding (PNC) was proposed in 2006 for application in
wireless networks. Since then it has developed into a subfield of network coding with wide …

Low-density parity-check (LDPC) codes have attracted much attention over the past two
decades since they can asymptotically approach the Shannon capacity in a variety of data …

In this work, we develop a pair of rate-diverse encoder and decoder for a two-user Gaussian
multiple access channel (GMAC). The proposed scheme enables the users to transmit with …

The fourth generation (4G) mobile communication systems are offering service worldwide
steadily. Although 4G systems could be loaded with much more services and data than …

When two or more users in a wireless network transmit simultaneously, their electromagnetic
signals are linearly superimposed on the channel. As a result, a receiver that is interested in …

Triggered by communication network operators experiencing energy cost as a significant
factor in profit calculations, researchers have started to investigate approaches for power …

A key issue in physical-layer network coding (PNC) is how to deal with the asynchrony
between signals transmitted by multiple transmitters. That is, symbols transmitted by different …

This paper presents the first implementation of a two-way relay network based on the
principle of physical-layer network coding (PNC). To date, only a simplified version of PNC …

This paper proposes relay selection to increase the physical layer security in multiuser
cooperative relay networks with multiple amplify-and-forward relays, in the presence of …

We present two physical layer secure transmission schemes for multiuser multirelay
networks, where the communication from M users to the base station is assisted by direct …