Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay

Jing Yang; Trung Q. Duong; Maged Elkashlan; Xianfu Lei; Xiqi Gao

doi:10.1109/ICC.2015.7249564

Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay

Jing Yang, Trung Q. Duong, Maged Elkashlan, Xianfu Lei, Xiqi Gao

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

3 Citations (Scopus)

Abstract

A multiuser scheduling multiple-input multiple-output (MIMO) cognitive radio network (CRN) with space-time block coding (STBC) is considered in this paper, where one secondary base station (BS) communicates with one secondary user (SU) selected from K candidates. The joint impact of imperfect channel state information (CSI) in BS → SUs and BS → PU due to channel estimation errors and feedback delay on the outage performance is firstly investigated. We obtain the exact outage probability expressions for the considered network under the peak interference power IP at PU and maximum transmit power Pm at BS which cover perfect/imperfect CSI scenarios in BS → SUs and BS → PU. In addition, asymptotic expressions of outage probability in high SNR region are also derived from which we obtain several important insights into the system design. For example, only with perfect CSIs in BS → SUs, i.e., without channel estimation errors and feedback delay, the multiuser diversity can be exploited. Finally, simulation results confirm the correctness of our analysis.

Original language	English
Title of host publication	2015 IEEE International Conference on Communications (ICC)
Place of Publication	London, UK
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	7737 - 7742
DOIs	https://doi.org/10.1109/ICC.2015.7249564
Publication status	Published - Jun 2015
Event	IEEE International Conference on Communications (ICC 2015) - London, United Kingdom Duration: 08 Jun 2015 → 12 Jun 2015

Conference

Conference	IEEE International Conference on Communications (ICC 2015)
Country/Territory	United Kingdom
City	London
Period	08/06/2015 → 12/06/2015

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10.1109/ICC.2015.7249564

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@inproceedings{5d12da04aba44c29b6b2010948d86d6b,

title = "Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay",

abstract = "A multiuser scheduling multiple-input multiple-output (MIMO) cognitive radio network (CRN) with space-time block coding (STBC) is considered in this paper, where one secondary base station (BS) communicates with one secondary user (SU) selected from K candidates. The joint impact of imperfect channel state information (CSI) in BS → SUs and BS → PU due to channel estimation errors and feedback delay on the outage performance is firstly investigated. We obtain the exact outage probability expressions for the considered network under the peak interference power IP at PU and maximum transmit power Pm at BS which cover perfect/imperfect CSI scenarios in BS → SUs and BS → PU. In addition, asymptotic expressions of outage probability in high SNR region are also derived from which we obtain several important insights into the system design. For example, only with perfect CSIs in BS → SUs, i.e., without channel estimation errors and feedback delay, the multiuser diversity can be exploited. Finally, simulation results confirm the correctness of our analysis.",

author = "Jing Yang and Duong, {Trung Q.} and Maged Elkashlan and Xianfu Lei and Xiqi Gao",

year = "2015",

month = jun,

doi = "10.1109/ICC.2015.7249564",

language = "English",

pages = "7737 -- 7742",

booktitle = "2015 IEEE International Conference on Communications (ICC)",

publisher = "Institute of Electrical and Electronics Engineers Inc.",

address = "United States",

note = "IEEE International Conference on Communications (ICC 2015) ; Conference date: 08-06-2015 Through 12-06-2015",

}

Yang, J, Duong, TQ, Elkashlan, M, Lei, X & Gao, X 2015, Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay. in 2015 IEEE International Conference on Communications (ICC). Institute of Electrical and Electronics Engineers Inc., London, UK, pp. 7737 - 7742, IEEE International Conference on Communications (ICC 2015), London, United Kingdom, 08/06/2015. https://doi.org/10.1109/ICC.2015.7249564

Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay. / Yang, Jing; Duong, Trung Q.; Elkashlan, Maged et al.
2015 IEEE International Conference on Communications (ICC). London, UK: Institute of Electrical and Electronics Engineers Inc., 2015. p. 7737 - 7742.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

TY - GEN

T1 - Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay

AU - Yang, Jing

AU - Duong, Trung Q.

AU - Elkashlan, Maged

AU - Lei, Xianfu

AU - Gao, Xiqi

PY - 2015/6

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N2 - A multiuser scheduling multiple-input multiple-output (MIMO) cognitive radio network (CRN) with space-time block coding (STBC) is considered in this paper, where one secondary base station (BS) communicates with one secondary user (SU) selected from K candidates. The joint impact of imperfect channel state information (CSI) in BS → SUs and BS → PU due to channel estimation errors and feedback delay on the outage performance is firstly investigated. We obtain the exact outage probability expressions for the considered network under the peak interference power IP at PU and maximum transmit power Pm at BS which cover perfect/imperfect CSI scenarios in BS → SUs and BS → PU. In addition, asymptotic expressions of outage probability in high SNR region are also derived from which we obtain several important insights into the system design. For example, only with perfect CSIs in BS → SUs, i.e., without channel estimation errors and feedback delay, the multiuser diversity can be exploited. Finally, simulation results confirm the correctness of our analysis.

AB - A multiuser scheduling multiple-input multiple-output (MIMO) cognitive radio network (CRN) with space-time block coding (STBC) is considered in this paper, where one secondary base station (BS) communicates with one secondary user (SU) selected from K candidates. The joint impact of imperfect channel state information (CSI) in BS → SUs and BS → PU due to channel estimation errors and feedback delay on the outage performance is firstly investigated. We obtain the exact outage probability expressions for the considered network under the peak interference power IP at PU and maximum transmit power Pm at BS which cover perfect/imperfect CSI scenarios in BS → SUs and BS → PU. In addition, asymptotic expressions of outage probability in high SNR region are also derived from which we obtain several important insights into the system design. For example, only with perfect CSIs in BS → SUs, i.e., without channel estimation errors and feedback delay, the multiuser diversity can be exploited. Finally, simulation results confirm the correctness of our analysis.

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DO - 10.1109/ICC.2015.7249564

M3 - Conference contribution

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EP - 7742

BT - 2015 IEEE International Conference on Communications (ICC)

PB - Institute of Electrical and Electronics Engineers Inc.

CY - London, UK

T2 - IEEE International Conference on Communications (ICC 2015)

Y2 - 8 June 2015 through 12 June 2015

ER -

Multiuser Scheduling for Cognitive MIMO with Channel Estimation Errors and Feedback Delay

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