Spectrum Sharing in MIMO Cognitive Radio Systems with Imperfect Channel State Information

Tiiro, Samuli; Umebayashi, Kenta; Lehtomäki, Janne; Suzuki, Yasuo

doi:10.1587/transcom.e97.b.867

Cited by 2 publications

(4 citation statements)

References 14 publications

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“…In other words, the estimated CSI of h i,P may differ from its actual value. The imperfect CSI of the interference link can be obtained by the SU through channel reciprocal [15] or pilot aided channel estimation [19]. In order to investigate the impact of imperfect CSI on the overall performance, we have an estimate of the channel of the form [20] …”

Section: System Model and Problem Definitionmentioning

confidence: 99%

“…When the imperfect CSI is used to control the interference to the PU, the interference constraint to the PU can be violated and the performance of the PU can be affected consequently. Therefore, it is important to investigate the impact of the imperfect CSI in spectrum sharing CR systems [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

“…For cooperative cognitive MIMO networks, the authors in [14] analyzed its performance under the perfect and imperfect CSI of the secondary link condition, where the approximate expressions for outage probability and average SER is derived with primary peak interference constraint. In [15], the authors proposed to perform power control following an probabilistic interference constraint, which is derived from the point of long term statistics of the interference power.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Performance analysis of transmit antenna selection for cognitive radio systems with imperfect channel estimation

Lan

Chen

Zhang

et al. 2016

EURASIP J. Adv. Signal Process.

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In this article, we consider a spectrum sharing cognitive radio network with a transmit antenna selection scheme, subject to the peak interference constraint of primary user (PU) and the maximum transmit power limit of secondary user (SU). Due to time-varying properties or feedback latency, the channel estimation of the link from secondary transmitter to primary receiver may be imperfect, which will result in the violation of the interference constraint at PU. Under the condition of imperfect channel state information (CSI), we derive the cumulative distribution function (CDF) and probability density function (PDF) of the SU's signal to noise ratio (SNR). Then, we obtain the closed-form expressions of average symbol error rate (SER) and capacity for the secondary system, respectively. Extensive simulations are performed with various system parameters to validate the correctness of our theoretical analysis.

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Section: System Model and Problem Definitionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Performance analysis of transmit antenna selection for cognitive radio systems with imperfect channel estimation

Lan

Chen

Zhang

et al. 2016

EURASIP J. Adv. Signal Process.

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“…Toll and remote real-time monitoring, vehicle safety inspection and intelligent traffic management can help solve the car monitoring, and other functions to improve the traffic situation [7]. In this paper, this problem is primarily based.…”

Section: Introductionmentioning

confidence: 99%

Intelligent management system of vehicle violation based on electronic license

Cai¹,

Li²,

Cai³

2015

Proceedings of the 2015 International Conference on Power Electronics and Energy Engineering

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Traditional vehicle management system is based on metal plate mainly identified by the video and image processing techniques which are low accuracy and less efficiency. However based on RFID technology, electronic license has the unique factory curing ID number and the vehicle physical binding, making it incomparable anti-counterfeiting. Here the design scheme of the whole system including database, detecting processing, and collision algorithm are discussed. Then the prototype of the proposed system is presented, and effectively solves the violation management and identification problem.

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Spectrum Sharing in MIMO Cognitive Radio Systems with Imperfect Channel State Information

Cited by 2 publications

References 14 publications

Performance analysis of transmit antenna selection for cognitive radio systems with imperfect channel estimation

Performance analysis of transmit antenna selection for cognitive radio systems with imperfect channel estimation

Intelligent management system of vehicle violation based on electronic license

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