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Communication Dans Un Congrès Année : 2014

Ray-Based Propagation Simulations for Probability of Missed Detection in Cognitive Radio Scenario

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Résumé

The ever expanding requirements of wireless resources to connect people and machines put more and more pressure on the radiofrequency spectrum. Considering its intrinsic limitation, the ”command and control” static frequency allocation scheme leads to a congestion of the spectrum itself. Cognitive radio is expected to be a solution to this problem by introducing an opportunistic use of the frequency bands that are not heavily occupied by licensed users. One of the key points of this technique is the capability to reliably detect the actual use of spectrum by legitimate users, in order to avoid interference with cognitive ones.

In this work we present the generation of coverage maps in terms of probability of missed detection (PMD) for active usersystems, e.g. GSM 900 and 1800 and UMTS. The analysis is carried out considering propagation dependent path-loss. This is evaluated using a deterministic ray-launching approach, that is able to provide accurate results in terms of scenario dependence at the cost of a significant computational complexity.

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Dates et versions

hal-02288402 , version 1 (14-09-2019)

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  • HAL Id : hal-02288402 , version 1

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Xin Zeng, Francesco Mani, Alain Sibille. Ray-Based Propagation Simulations for Probability of Missed Detection in Cognitive Radio Scenario. Journées Scientifiques 2014 d’URSI-France, Mar 2014, Paris, France. ⟨hal-02288402⟩
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