Although sophisticated wireless radio technologies make it possible for unlicensed wireless
devices to take advantage of un-used broadcast TV spectra, those looking to advance the …

We present an analytical framework to assess the link layer throughput of multichannel
Opportunistic Spectrum Access (OSA) ad hoc networks. Specifically, we focus on analyzing …

Transmission over multiple frequency bands combined into one logical channel speeds up
data transfer for wireless networks. On the other hand, the allocation of multiple channels to …

In this paper, we study cognitive radio and propose mathematical and behavioral modeling
of the LTE downlink signal of primary users in order to facilitate spectrum decisions of the …

We present an analytical model that enables the evaluation of opportunistic spectrum
orthogonal frequency division multiple-access (OS-OFDMA) networks using metrics such as …

In this paper, we analyze the saturation throughput of a cognitive WLAN overlaid on a
primary OFDMA TDD network (eg, LTE or WiMAX). In this scenario, after the contention …

Abstract Machine to machine (M2M) communications have gained in the last years an
increasing interest due to ever growing number of machine‐type devices that are used in …

We present an analytical framework to assess the effectiveness of different combinations of
medium access control (MAC) protocols for multichannel opportunistic spectrum access …

In this paper, we consider Mobile WiMAX and LTE as the future technologies for primary
OFDMA systems and study dynamic spectrum access (DSA) for unlicensed systems …

Wireless networks equipped with opportunistic spectrum access (OSA) capabilities [1, 2]
allow the network subscriber, often referred to as secondary user (SU), to access frequency …