Due to the malicious attacks in wireless networks, physical layer security has attracted
increasing concerns from both academia and industry. The research on physical layer …

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

In the design of narrowband multi-antenna systems, a limiting factor is the amount of
channel state information (CSI) available at the transmitter. This is especially evident in multi …

Adaptive orthogonal frequency division multiple access (OFDMA) has recently been
recognized as a promising technique for providing high spectral efficiency in future …

Tailored for the emerging class of cognitive radio networks comprising primary and
secondary wireless users, the present paper deals with dynamic allocation of subcarriers …

In this paper, we propose a limited rate feedback scheme for decode-and-forward (DF) relay-
assisted networks. It is assumed that the cellular user is far from the base station such that …

In this paper, we propose a device-to-device (D2D) communication scenario underlaying a
cellular network, where both D2D and cellular users (CUs) are discrete power-rate systems …

Algorithms that jointly allocate resources across different layers are envisioned to boost the
performance of wireless systems. Recent results have revealed that two of the most …

In this paper, we consider the problem of resource allocation for secure communications in
decode-and-forward (DF) relay-assisted orthogonal frequency-division multiple access …

This paper derives the analytical bit error rate (BER) of orthogonal frequency division
multiplexing (OFDM) systems employing selective diversity in Rayleigh fading environments …