Physical Layer and MAC Design for Self-Reliant Cognitive Multicast Networks Using LTE Resources

Geospatial Cognitive Networking Protocols and Sensing Algorithms for 5G NR Beamforming

“…The CP duration in 5G varies with subcarrier spacing and requires adaptation. This work adapts power control from our previous work, CIAO-LTE [7], to limit interference outside the EoO and consider beamforming.…”

“…Cooperation with the primary network prevents interference at the cost of increased network protocol complexity and additional dependence [6]. As defined in [7], a "self-reliant" cognitive network does not cooperate with the primary network with any feedback mechanisms or messages. Of the three paradigms, the interweave paradigm is the most reasonable for a self-reliant network because avoiding interference depends on dynamic spectrum access that only requires knowing network activity and not the contents of dynamically changing network messages [8].…”

“…Of the three paradigms, the interweave paradigm is the most reasonable for a self-reliant network because avoiding interference depends on dynamic spectrum access that only requires knowing network activity and not the contents of dynamically changing network messages [8]. Self-reliant cognitive networks provide communication opportunities without stipulations associated with the primary network, including infrastructure changes, standard adaptations, primary network control channel usage, and reliance on the primary network for all operations [7]. In addition, self-reliant communications can act as robust autonomous backup channels in case of primary network failure.…”

“…Contribution: As of the writing of this article, no studies have considered self-reliant cognitive radio that fully considers the 5G NR standard. In [7], we developed CIAO-LTE, a methodology for establishing a self-reliant secondary network for 4G LTE. In this article, we adopt such a methodology for 5G NR.…”

“…In this article, we adopt such a methodology for 5G NR. The MAC for multicast data can be used as stated in [7] while considering many of the same limitations, such as the short time transition interval and a low number of contention windows that persist in 5G. Only slight changes to the MAC are 2 JHUAPL Distribution Statement A; Approved for Public Release; distribution unlimited.…”