Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems

En Zhou; Jinglin Shi; Yonghui Li; Branka Vucetic; Xiaojing Huang; Y. Jay Guo

doi:10.1109/WCNC.2010.5506250

Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems

En Zhou^*, Jinglin Shi, Yonghui Li, Branka Vucetic, Xiaojing Huang, Y. Jay Guo

^*Corresponding author for this work

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

Abstract

The power allocation problem is addressed for time division duplex (TDD) LTE-A uplink systems in this paper. Due to the IDFT de-spreading in LTE-A uplink, the channel frequency responses in an IDFT de-spreading block will be tangled together. After analyzing the equivalent signal to interference plus noise ratio (SINR) in the time domain, a Truncated Squared norm of channel equalization Coefficients based Power Allocation (TSCPA) method is proposed to improve the final SINR performance after the IDFT de-spreading block. The proposed TSC-PA algorithm is verified for the clustered DFT-s-OFDM system in eigen-model block diagonalization multi-user MIMO uplink environment by simulations. The results demonstrate that the proposed TSC-PA algorithm can further improve the system block error rate (BLER) performance by selecting a proper truncation threshold.

Original language	English
Title of host publication	2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings
Place of Publication	Piscataway, NJ
Publisher	Institute of Electrical and Electronics Engineers (IEEE)
Pages	1-5
Number of pages	5
ISBN (Print)	9781424463985
DOIs	https://doi.org/10.1109/WCNC.2010.5506250
Publication status	Published - 2010
Externally published	Yes
Event	IEEE Wireless Communications and Networking Conference 2010, WCNC 2010 - Sydney, NSW, Australia Duration: 18 Apr 2010 → 21 Apr 2010

Other

Other	IEEE Wireless Communications and Networking Conference 2010, WCNC 2010
Country/Territory	Australia
City	Sydney, NSW
Period	18/04/10 → 21/04/10

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10.1109/WCNC.2010.5506250

Cite this

Zhou, E., Shi, J., Li, Y., Vucetic, B., Huang, X., & Guo, Y. J. (2010). Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems. In 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings (pp. 1-5). Article 5506250 Institute of Electrical and Electronics Engineers (IEEE). https://doi.org/10.1109/WCNC.2010.5506250

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title = "Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems",

abstract = "The power allocation problem is addressed for time division duplex (TDD) LTE-A uplink systems in this paper. Due to the IDFT de-spreading in LTE-A uplink, the channel frequency responses in an IDFT de-spreading block will be tangled together. After analyzing the equivalent signal to interference plus noise ratio (SINR) in the time domain, a Truncated Squared norm of channel equalization Coefficients based Power Allocation (TSCPA) method is proposed to improve the final SINR performance after the IDFT de-spreading block. The proposed TSC-PA algorithm is verified for the clustered DFT-s-OFDM system in eigen-model block diagonalization multi-user MIMO uplink environment by simulations. The results demonstrate that the proposed TSC-PA algorithm can further improve the system block error rate (BLER) performance by selecting a proper truncation threshold.",

author = "En Zhou and Jinglin Shi and Yonghui Li and Branka Vucetic and Xiaojing Huang and Guo, {Y. Jay}",

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Zhou, E, Shi, J, Li, Y, Vucetic, B, Huang, X & Guo, YJ 2010, Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems. in 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings., 5506250, Institute of Electrical and Electronics Engineers (IEEE), Piscataway, NJ, pp. 1-5, IEEE Wireless Communications and Networking Conference 2010, WCNC 2010, Sydney, NSW, Australia, 18/04/10. https://doi.org/10.1109/WCNC.2010.5506250

Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems. / Zhou, En; Shi, Jinglin; Li, Yonghui et al.
2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE), 2010. p. 1-5 5506250.

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

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AU - Huang, Xiaojing

AU - Guo, Y. Jay

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AB - The power allocation problem is addressed for time division duplex (TDD) LTE-A uplink systems in this paper. Due to the IDFT de-spreading in LTE-A uplink, the channel frequency responses in an IDFT de-spreading block will be tangled together. After analyzing the equivalent signal to interference plus noise ratio (SINR) in the time domain, a Truncated Squared norm of channel equalization Coefficients based Power Allocation (TSCPA) method is proposed to improve the final SINR performance after the IDFT de-spreading block. The proposed TSC-PA algorithm is verified for the clustered DFT-s-OFDM system in eigen-model block diagonalization multi-user MIMO uplink environment by simulations. The results demonstrate that the proposed TSC-PA algorithm can further improve the system block error rate (BLER) performance by selecting a proper truncation threshold.

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Zhou E, Shi J, Li Y, Vucetic B, Huang X, Guo YJ. Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems. In 2010 IEEE Wireless Communications and Networking Conference, WCNC 2010 - Proceedings. Piscataway, NJ: Institute of Electrical and Electronics Engineers (IEEE). 2010. p. 1-5. 5506250 doi: 10.1109/WCNC.2010.5506250

Power allocation based on truncated squared norm of channel equalization coefficients for TDD LTE-A uplink systems

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