Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers

Mahmoud Abdelaziz; Lauri Anttila; Mikko Valkama

doi:10.1109/GlobalSIP.2016.7905931

Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers

Mahmoud Abdelaziz, Lauri Anttila, Mikko Valkama

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

Abstract

In frequency division duplexing (FDD) transceivers, the intermodulation distortion (IMD) created by a nonlinear transmit power amplifier can easily interfere with the receiver (RX) band. This is a particular concern in various carrier aggregation scenarios, and can cause severe own RX desensitization. In this paper, a spur-injection based sub-band digital predistortion (DPD) solution is proposed to mitigate this problem. Compared to earlier works, the proposed DPD parameter learning is performed using the main RX of the device, and thus it does not require an extra observation RX, which implies reduced costs and size. The proposed DPD is tested using computer simulations with practical models for the transmitter (TX) power amplifier and the TX/RX duplexer filters. The TX-induced IMD is suppressed by up to 25 dB at the own RX band, demonstrating a significant improvement in the RX signal-to-interference-and-noise-ratio (SINR).

Original language	English
Title of host publication	Proceedings of IEEE Global Conference on Signal and Information Processing
Place of Publication	Washington, DC
Publisher	IEEE
Pages	694-698
ISBN (Electronic)	978-1-5090-4544-0
DOIs	https://doi.org/10.1109/GlobalSIP.2016.7905931
Publication status	Published - 7 Dec 2016
Publication type	A4 Article in conference proceedings
Event	IEEE Global Conference on Signal and Information Processing - Duration: 1 Jan 1900 → …

Conference

Conference	IEEE Global Conference on Signal and Information Processing
Period	1/01/00 → …

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Publication forum level 1

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10.1109/GlobalSIP.2016.7905931

Cite this

@inproceedings{6d30a0b56b6048f5b2b12369bb6be794,

title = "Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers",

abstract = "In frequency division duplexing (FDD) transceivers, the intermodulation distortion (IMD) created by a nonlinear transmit power amplifier can easily interfere with the receiver (RX) band. This is a particular concern in various carrier aggregation scenarios, and can cause severe own RX desensitization. In this paper, a spur-injection based sub-band digital predistortion (DPD) solution is proposed to mitigate this problem. Compared to earlier works, the proposed DPD parameter learning is performed using the main RX of the device, and thus it does not require an extra observation RX, which implies reduced costs and size. The proposed DPD is tested using computer simulations with practical models for the transmitter (TX) power amplifier and the TX/RX duplexer filters. The TX-induced IMD is suppressed by up to 25 dB at the own RX band, demonstrating a significant improvement in the RX signal-to-interference-and-noise-ratio (SINR).",

author = "Mahmoud Abdelaziz and Lauri Anttila and Mikko Valkama",

year = "2016",

month = dec,

day = "7",

doi = "10.1109/GlobalSIP.2016.7905931",

language = "English",

pages = "694--698",

booktitle = "Proceedings of IEEE Global Conference on Signal and Information Processing",

publisher = "IEEE",

note = "IEEE Global Conference on Signal and Information Processing ; Conference date: 01-01-1900",

}

Abdelaziz, M, Anttila, L & Valkama, M 2016, Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers. in Proceedings of IEEE Global Conference on Signal and Information Processing. IEEE, Washington, DC, pp. 694-698, IEEE Global Conference on Signal and Information Processing, 1/01/00. https://doi.org/10.1109/GlobalSIP.2016.7905931

Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers. / Abdelaziz, Mahmoud; Anttila, Lauri ; Valkama, Mikko.

Proceedings of IEEE Global Conference on Signal and Information Processing. Washington, DC : IEEE, 2016. p. 694-698.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Scientific › peer-review

TY - GEN

T1 - Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers

AU - Abdelaziz, Mahmoud

AU - Anttila, Lauri

AU - Valkama, Mikko

PY - 2016/12/7

Y1 - 2016/12/7

N2 - In frequency division duplexing (FDD) transceivers, the intermodulation distortion (IMD) created by a nonlinear transmit power amplifier can easily interfere with the receiver (RX) band. This is a particular concern in various carrier aggregation scenarios, and can cause severe own RX desensitization. In this paper, a spur-injection based sub-band digital predistortion (DPD) solution is proposed to mitigate this problem. Compared to earlier works, the proposed DPD parameter learning is performed using the main RX of the device, and thus it does not require an extra observation RX, which implies reduced costs and size. The proposed DPD is tested using computer simulations with practical models for the transmitter (TX) power amplifier and the TX/RX duplexer filters. The TX-induced IMD is suppressed by up to 25 dB at the own RX band, demonstrating a significant improvement in the RX signal-to-interference-and-noise-ratio (SINR).

AB - In frequency division duplexing (FDD) transceivers, the intermodulation distortion (IMD) created by a nonlinear transmit power amplifier can easily interfere with the receiver (RX) band. This is a particular concern in various carrier aggregation scenarios, and can cause severe own RX desensitization. In this paper, a spur-injection based sub-band digital predistortion (DPD) solution is proposed to mitigate this problem. Compared to earlier works, the proposed DPD parameter learning is performed using the main RX of the device, and thus it does not require an extra observation RX, which implies reduced costs and size. The proposed DPD is tested using computer simulations with practical models for the transmitter (TX) power amplifier and the TX/RX duplexer filters. The TX-induced IMD is suppressed by up to 25 dB at the own RX band, demonstrating a significant improvement in the RX signal-to-interference-and-noise-ratio (SINR).

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BT - Proceedings of IEEE Global Conference on Signal and Information Processing

PB - IEEE

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T2 - IEEE Global Conference on Signal and Information Processing

Y2 - 1 January 1900

ER -

Digital predistortion for mitigating transmitter-induced receiver desensitization in carrier aggregation FDD transceivers

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