Abstract
Understanding the performance of the cognitive radio systems is of great interest. Different paradigms have been extensively analyzed in the literature to perform secondary access to the licensed spectrum. Of these, Interweave System (IS) has been widely investigated for performance analysis. According to IS, sensing is employed at the Secondary Transmitter (ST) that protects the Primary Receiver (PR) from the interference induced. Thus, in order to control the interference at the PR, it is required to sustain a certain level of probability of detection. In this regard, the ST requires the knowledge of the received power. However, in practice, this knowledge is not available at the ST. Thereby performing analysis considering the prior knowledge of the received power is too idealistic, thus, do not depict the actual performance of the IS. Motivated by this fact, an estimation model that includes received power estimation is proposed. Considering a sensing-throughput tradeoff, we apply this model to characterize the performance of the IS. Most importantly, the proposed model captures the estimation error to determine the distortion in the system performance. Based on analysis, it is illustrated that the ideal model overestimates the performance of the IS. Finally, it is shown that with an appropriate choice of the estimation time, the severity in distortion can be effectively regulated.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
Goldsmith, A., Jafar, S., Maric, I., Srinivasa, S.: Breaking Spectrum Gridlock With Cognitive Radios: An Information Theoretic Perspective. Proceedings of the IEEE 97(5), 894–914 (2009)
Axell, E., Leus, G., Larsson, E., Poor, H.: Spectrum sensing for cognitive radio: State-of-the-art and recent advances. IEEE Signal Processing Magazine 29(3), 101–116 (2012)
Sharma, S., Chatzinotas, S., Ottersten, B.: Exploiting polarization for spectrum sensing in cognitive satcoms. In: CROWNCOM, pp. 36–41, June 2012
Urkowitz, H.: Energy detection of unknown deterministic signals. Proceedings of the IEEE 55(4), 523–531 (1967)
Kostylev, V.: Energy detection of a signal with random amplitude. In: ICC, vol. 3, pp. 1606–1610 (2002)
Digham, F., Alouini, M.-S., Simon, M.K.: On the energy detection of unknown signals over fading channels. In: ICC, vol. 5, pp. 3575–3579, May 2003
Herath, S., Rajatheva, N., Tellambura, C.: Unified approach for energy detection of unknown deterministic signal in cognitive radio over fading channels. In: ICC Workshops, pp. 1–5, June 2009
Mariani, A., Giorgetti, A., Chiani, M.: Energy detector design for cognitive radio applications. In: 2010 International Waveform Diversity and Design Conference (WDD), pp. 000053–000057, August 2010
Tandra, R., Sahai, A.: SNR Walls for Signal Detection. IEEE Journal of Selected Topics in Signal Processing 2(1), 4–17 (2008)
Liang, Y.-C., Zeng, Y., Peh, E., Hoang, A.T.: Sensing-Throughput Tradeoff for Cognitive Radio Networks. IEEE Transactions on Wireless Communications 7(4), 1326–1337 (2008)
Cardenas-Juarez, M., Ghogho, M.: Spectrum Sensing and Throughput Trade-off in Cognitive Radio under Outage Constraints over Nakagami Fading. IEEE Communications Letters 15(10), 1110–1113 (2011)
Sharkasi, Y., Ghogho, M., McLernon, D.: Sensing-throughput tradeoff for OFDM-based cognitive radio under outage constraints. In: ISWCS, pp. 66–70, August 2012
Kaushik, A., Sharma, S.K., Chatzinotas, S., Ottersten, B., Jondral, F.K.: Estimation-Throughput tradeoff for underlay cognitive radio systems. In: IEEE Int. Conf. on Communications (ICC) - Cognitive Radio and Networks Symposium, June 2015 (to appear)
Kaushik, A., Mueller, M., Jondral, F.K.: Cognitive Relay: Detecting Spectrum Holes in a Dynamic Scenario. In: ISWCS, pp. 1–2, April 2013
Kay, S.: Fundamentals of Statistical Signal Processing: Detection theory. Prentice Hall Signal Processing Series. Prentice-Hall PTR (1998)
Gradshteyn, I.S., Ryzhik, I.M.: Table of Integrals, Series, and Products, 6th edn. Academic Press, San Diego (2000)
Author information
Authors and Affiliations
Corresponding author
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2015 Institute for Computer Science, Social Informatics and Telecommunications Engineering
About this paper
Cite this paper
Kaushik, A., Sharma, S.K., Chatzinotas, S., Ottersten, B., Jondral, F. (2015). Sensing-Throughput Tradeoff for Cognitive Radio Systems with Unknown Received Power. In: Weichold, M., Hamdi, M., Shakir, M., Abdallah, M., Karagiannidis, G., Ismail, M. (eds) Cognitive Radio Oriented Wireless Networks. CrownCom 2015. Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering, vol 156. Springer, Cham. https://doi.org/10.1007/978-3-319-24540-9_25
Download citation
DOI: https://doi.org/10.1007/978-3-319-24540-9_25
Published:
Publisher Name: Springer, Cham
Print ISBN: 978-3-319-24539-3
Online ISBN: 978-3-319-24540-9
eBook Packages: Computer ScienceComputer Science (R0)