SHRUTI GOEL
@jiit.ac.in
Dr. Shruti, Department of Mathematics
Jaypee Institute of Information Technology, Noida
RESEARCH, TEACHING, or OTHER INTERESTS
Multidisciplinary, Applied Mathematics
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Shruti Goel and Rakhee Kulshrestha
Springer Science and Business Media LLC
Shruti Shruti and Rakhee Rakhee
Institute of Electrical and Electronics Engineers (IEEE)
It is well known that cognitive radio (CR) techniques have great potential to deal with the problem of radio spectrum scarcity. Spectrum sensing technique plays a critical role in enabling unlicensed secondary users (SUs) to utilize spectrum holes in cognitive radio networks (CRNs). However, a licensed primary user (PU) can be appropriately protected by simultaneously performing spectrum sensing and data transmission i.e., by using full-duplex (FD) mode. In this paper, we have proposed and analyzed a strategy which includes spectrum sensing and spectrum access mechanisms both. We consider heterogeneous traffic of real-time and non real-time SUs based on their different delay tolerance characteristics. We address the issue of false alarm rate (FAR) associated with FD sensing. Spectrum handoff and call buffering strategies with <inline-formula><tex-math notation="LaTeX">$p$</tex-math><alternatives><mml:math><mml:mi>p</mml:mi></mml:math><inline-graphic xlink:href="rakhee-ieq2-3042836.gif"/></alternatives></inline-formula>-Retry policy are employed jointly so that SUs that would otherwise be blocked or forcibly dropped could be buffered and possibly served later. To evaluate the performance of the proposed strategy, five-dimensional continuous time Markov chain (CTMC) model is developed and the queueing-theoretic approach is utilized. Numerical results demonstrate the influence of spectrum sensing errors on the performance of such CRNs. Results also reveal that the provision of buffers under retrial policy increases the overall network resource utilization while decreasing blocking and dropping probabilities.
Shruti Goel and Rakhee Kulshrestha
Springer Science and Business Media LLC
Srinivas R. Chakravarthy, Shruti, and Alexander Rumyantsev
Springer Science and Business Media LLC
Rakhee Kulshrestha and N.A. Shruti
Inderscience Publishers
S. Chakravarthy, Serife Ozkar and Shruti
Rakhee Kulshrestha, Madhu Jain, and Shruti
Springer Science and Business Media LLC
Shruti and Rakhee Kulshrestha
Elsevier BV
Rakhee and Shruti
Springer Singapore
Srinivas R. Chakravarthy, Shruti, and Rakhee Kulshrestha
Elsevier BV