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An energy efficient cognitive radio system with quantized soft sensing and duration analysis | IEEE Conference Publication | IEEE Xplore

An energy efficient cognitive radio system with quantized soft sensing and duration analysis


Abstract:

In this paper, an energy efficient cognitive radio system is proposed. The proposed design optimizes the secondary user transmission power and the sensing duration combin...Show More

Abstract:

In this paper, an energy efficient cognitive radio system is proposed. The proposed design optimizes the secondary user transmission power and the sensing duration combined with soft-sensing information to minimize the energy per goodbit. Due to the non-convex nature of the problem we prove its pseudo-convexity to guarantee the optimal solution. Furthermore, a quantization scheme, that discretize the soft-sensing information, is proposed and analyzed to reduce the overload of the continuously adapted power. Numerical results show that the energy per goodbit performance of the proposed system outperforms the benchmark systems. The impact of the quantization levels and other system parameters is evaluated in the numerical results.
Date of Conference: 09-12 March 2015
Date Added to IEEE Xplore: 18 June 2015
Electronic ISBN:978-1-4799-8406-0

ISSN Information:

Conference Location: New Orleans, LA, USA

References

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