Universiti Teknologi Malaysia Institutional Repository

CSI feedback model in the context of adaptive cognitive radio systems

Hosseini, Haleh and Ahmad Zamani, Anis Izza and Syed Yusof, Sharifah Kamilah and Fisal, Norsheila (2009) CSI feedback model in the context of adaptive cognitive radio systems. In: 2009 Third Asia International Conference on Modelling & Simulation. Article number 5072069 . Institute of Electrical and Electronics Engineers, New York, pp. 681-686. ISBN 978-076953648-4

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Official URL: http://dx.doi.org/10.1109/AMS.2009.30

Abstract

Cognitive radio has the ability to sense the environment and adapt its behavior to optimize communication features, such as quality of service in the presence of interference and noise. In physical layer to achieve this goal, different phases of sensing, channel estimation, and configuration selection are necessary. The sensing part measures the interference level, recognize the spectrum holes, and send this information to Channel estimator. In the next step, channel state information (CSI) is used for data detection and also sent to the transmitter through a limited feedback. CSI feedback consists of achievable rate, SNR value, modulation or coding schemes (MCS). Feedback link improves the system performance in the cost of complexity and delay. In this paper, we present and compare different feedback schemes for cognitive radio and study the channel capacity when an imperfect feedback link is corrupted by noise and delay.

Item Type:Book Section
Additional Information:2009 3rd Asia International Conference on Modelling and Simulation, AMS 2009; Bandung, Bali; 25 May 2009 through 26 May 2009
Uncontrolled Keywords:achievable rate, channel estimator, coding scheme, cognitive radio, communication features, CSI feedback, data detection
Subjects:T Technology > TK Electrical engineering. Electronics Nuclear engineering
Divisions:Electrical Engineering
ID Code:13296
Deposited By: Ms Zalinda Shuratman
Deposited On:03 Aug 2011 07:16
Last Modified:03 Aug 2011 07:16

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