Optimizing radio transmission power and user data rates in wireless systems requires full
system observability. While the problem has been extensively studied in the literature …

The purpose of this paper is to present a vision for future mobile and wireless networks. The
vision, which we call Networks without Borders (NwoB), is based on a marketplace of virtual …

The next generation communication systems are evolving towards an increased flexibility in
different aspects. Enhanced flexibility is the key in order to address diverse requirements …

We consider a joint decision-making problem of the transmission power and channel in
wireless networks with unknown state switching patterns for improving energy efficiency …

In orthogonal frequency-division multiplexing (OFDM) systems, suppressing the out-of-band
(OOB) emission with pulse shaping comes with a price. The expense emerges in designing …

In this paper, we introduce a windowing technique, which provides optimal time-frequency
containment and maximal adjacent channel interference (ACI) rejection for orthogonal …

The underlay spectrum access is a very prominent technique in cognitive radio (CR)
communication systems in which the primary users (PUs) share the spectrum with the …

Orthogonal frequency division multiplexing (OFDM) has been recognized as a suitable
candidate for cognitive radio (CR) systems. However, the high sidelobe leakage in OFDM …

Microwave backhaul links are characterized by high signal-to-noise ratios permitting
spectrally-efficient transmission. The used signal constellation sizes and achievable data …

This paper presents the results of first ever implementation of learning algorithm for
opportunistic spectrum access (OSA) in lab conditions. The OSA scheme consists of two …