Dynamic spectrum-sharing protocols are gaining attention due to the need for improved
spectrum utilization. We propose a spectrum-sharing protocol with two-way relaying …

In this paper, we propose a two-phase overlay spectrum sharing protocol based on
cooperative decode-and-forward relaying which allows the secondary system to gain …

In this paper, we consider a two-path relay channel (TPRC) with the assistance of two
decode-and-forward relays alternatively. Upon successfully decoding a source packet, a …

In future wireless networks devices may cooperate to form logical links. Each of these links
may consist of several independent physical channels which are shared by the cooperating …

We consider spectrum sharing in a cognitive radio network where a secondary system co-
exists with an automatic repeat-request (ARQ)-based primary system. A cooperate-and …

Cooperative diversity represents a new class of wireless communication techniques in
which network nodes help each other in relaying information to realize spatial diversity …

In this paper, a novel hybrid non-orthogonal multiple access (NOMA) system that combines
the cooperative NOMA (C-NOMA), the original NOMA, and the orthogonal multiple access …

It is not economically viable to allocate a dedicated spectrum band to wireless sensor
networks (WSNs). Moreover, sharing a spectrum band with incumbent (primary) system …

Scarcity of radio spectrum and inherent inefficiency of current spectrum allocation policies
have spurred much research for alternative spectrum access techniques giving birth to the …

We consider spectrum sharing in a cognitive radio network where a secondary user co-
exists with an ARQ-based primary user. A spectrum sharing protocol is proposed where the …