Theoretical Investigation of Different Diversity Combining Techniques in Cognitive Radio

• Autorzy: Agarwal R. , Srivastava N. , Katiyar H.

Identyfikatory

DOI

10.26636/jtit.2018.124618

• Języki publikacji: EN

Abstrakty

EN

In this paper, the performance of an energy detector in cognitive radio, using different diversity combining techniques, is evaluated. Among many diversity combining techniques, maximal ratio combining (MRC) gives the best results but at the cost of the highest complexity. To design a simpler receiver, it is suggested to use less complex combining techniques, i.e. switched diversity, which provides one of the least complex solutions to combat fading. The paper analyzes two switched diversity schemes, switch examine combining (SEC), and switch examine combining with post examining selection (SECp). A closed form expression determining the probability of detection using MRC, SEC and SECp is derived for various numbers of branches. Detection performance with different diversity combining techniques is compared and the complexity trade-off is observed.

Słowa kluczowe

EN

cognitive radio; complementary ROC; post examining selection; probability of detection; probability of false alarm; switch combining; examine combining

• Wydawca: Instytut Łączności - Państwowy Instytut Badawczy
• Czasopismo: Journal of Telecommunications and Information Technology
• Rocznik: 2018
• Tom: nr 3
• Strony: 64--69
• Opis fizyczny: Bibliogr. 26 poz., rys.

Twórcy

autor

Agarwal R.

• Babu Banarasi Das National Institute of Technology & Management, Lucknow, Uttar Pradesh, India 226010

autor

Srivastava N.

• Rajkiya Engineering College, Kannauj, Uttar Pradesh, India 209732

autor

Katiyar H.

• Rajkiya Engineering College, Sonbhadra, Uttar Pradesh, India 231206

Bibliografia

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Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).