Abstract
To accommodate the rapidly increasing demand for wireless broadband communications in Smart Grid (SG) networks, research efforts are currently ongoing to enable the SG networks to utilize the TV spectrum according to the Cognitive Radio paradigm. To this aim, in this letter, we develop an analytical framework for the optimal deployment of multiple closely-located SG Neighborhood Area Networks (NANs) concurrently using the same TV spectrum. The objective is to derive the optimal values for both the number of NANs and their coverage. More specifically, regarding the number of NANs, we derive the optimal closed-form expression, i.e., the closed-form expression that assures the deployment of the maximum number of NANs in the considered region satisfying a given collision constraint on the transmissions of the NANs. Regarding the NAN coverage, we derive the optimal closed-form expression, i.e., the closed-form expression of the NAN transmission range that assures the maximum coverage of each NAN in the considered region satisfying the given collision constraint. All the theoretical results are derived by adopting a stochastic approach. Finally, numerical results validate the theoretical analysis.
Highlights
To accommodate the rapidly increasing demand for wireless broadband communications inSmart Grid (SG) scenarios, research efforts [1] are currently ongoing to enable the SG Networks (SGNs) to utilize the channels of the TV spectrum temporarily unused by the licensed users, referred to as incumbents, according to the Cognitive Radio paradigm [2,3,4,5,6]
From [14], in this letter, we develop an analytical framework for the optimal deployment of multiple closely-located Neighborhood Area Networks (NANs) using the same TV White Space (TVWS) channel with the objective to derive the optimal values for both the number of NANs and their coverage
The traffic of the i-th NAN is modeled thought the parameters Pai and Pin a probabilities of an arbitrary Home Area Network (HAN) gateway belonging to the i-th NAN being active and inactive, respectively
Summary
To accommodate the rapidly increasing demand for wireless broadband communications in. SG communications over TVWS channels are conditioned by regulators on the ability of the SGNs to avoid harmful interference toward incumbents To this aim, the existing rulings [7] obviate the spectrum sensing as the mechanism for the SGNs to determine the TVWS availability. The existing rulings [7] obviate the spectrum sensing as the mechanism for the SGNs to determine the TVWS availability Instead, they require the SGNs to periodically access to a geolocated database, referred to as White Space. Let us consider the typical SG scenario shown, where several smart meters connected to a gateway constitute a Home Area Network (HAN), and multiple gateways connected to a Data.
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