Cognitive Communication and Cooperative HetNet Coexistence by Maria-Gabriella Di Benedetto & Faouzi Bader

Author:Maria-Gabriella Di Benedetto & Faouzi Bader
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham

Possibility for practical deployments

Yes

Yes

It is evident that both techniques (and REM construction approaches) exhibit advantages under certain circumstances. The sensing-based technique is more flexible and dynamic providing real-time radio environmental information even for low cost devices (with appropriate calibration). Additionally, most of the wireless devices on the market inherently possess the capability to perform spectrum sensing by measuring the RSS values. The database-based technique can provide accurate and reliable information for static radio environments (e.g. TVWS—TV white spaces) and provide extensive set of spectrum related information real-time (e.g. historical spectrum occupancy, locations of primary static transmitters and receivers etc.).

It is clear that the optimal way towards accurate REM construction should embrace the benefits of both approaches [2]. The synergy between them allows using their complementarity in order to derive a practically deployable and accurate REM architecture for various applications [9, 10]. Figure 9.1 depicts a possible REM construction approach based on the joint sensing-based and database-based detections combined in a single architecture.

Fig. 9.1Generic REM construction approach

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