Performance Evaluation of Spectrum Sensing Using Recovered Secondary Frames With Decoding Errors

The performance of spectrum sensing using the recovered secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the decoding errors into account and therefore provides a more realistic comparison between the new model and t...

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Vydáno v:IEEE transactions on wireless communications Ročník 11; číslo 8; s. 2934 - 2945
Hlavní autoři: Tang, Liang, Chen, Yunfei, Nallanathan, Arumugam, Hines, Evor L.
Médium: Journal Article
Jazyk:angličtina
Vydáno: New York, NY IEEE 01.08.2012
Institute of Electrical and Electronics Engineers
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Témata:
Achievable throughput
Analytical models
Applied sciences
Coding, codes
cognitive radio
Data communication
Decoding
Detection
Detection, estimation, filtering, equalization, prediction
Error analysis
Errors
Exact sciences and technology
Frames
Information, signal and communications theory
Mathematical models
Modulation
Numerical models
Receivers
Sensors
Signal and communications theory
Signal representation. Spectral analysis
Signal, noise
spectrum sensing
Studies
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Thresholds
Throughput
Transmission and modulation (techniques and equipments)
Performance evaluation
Fading
Information rate
Data transmission
Decoding
Information transmission
Upper bound
cognitive radio
Achievable throughput
Spectrum analysis
Modulation
spectrum sensing
Receiver operating characteristic curves
Signal processing
Numerical simulation
Error correcting code
Signal analysis
Software radio
ISSN:1536-1276, 1558-2248
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Popis
Shrnutí:The performance of spectrum sensing using the recovered secondary frames is analyzed. Unlike the previous work that assumes perfect decoding of the secondary signal, the new analysis takes the decoding errors into account and therefore provides a more realistic comparison between the new model and the conventional model. Both the receiver operating characteristics curves for spectrum sensing and the achievable throughput for data transmission are derived. Effects of fading and error control codes are also investigated. Numerical results show that the new model that considers the decoding error outperforms the conventional model when the number of transmitted secondary frames is below a certain threshold. An upper bound performance can also be obtained by ignoring the decoding error. The threshold is determined by the primary user traffic, the spectrum sensing technique and the secondary signal modulation scheme.
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ISSN:1536-1276
1558-2248
DOI:10.1109/TWC.2012.060212.111800