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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/13001

Title: PAPR Constrained Power Allocation for Multi-Carrier Transmission in Multiuser SIMO Communications
Authors: Trevor, Valtteri
Tolli, Anti
Matsumoto, Tad
Keywords: Power minimization
soft interference cancellation
MMSE receiver
multiuser detection
PAPR reduction
Issue Date: 2015-11-30
Publisher: Institute of Electrical and Electronics Engineers (IEEE)
Magazine name: IEEE Transactions on Wireless Communications
Volume: 15
Number: 4
Start page: 2458
End page: 2473
DOI: 10.1109/TWC.2015.2504368
Abstract: Peak-to-average power ratio (PAPR) constrained power allocation for multicarrier transmission in multiuser single-input multiple-output (SIMO) communications is considered in this paper. Reducing the PAPR in any transmission system is beneficial because it allows the use of inexpensive, energy-efficient power amplifiers. In this paper, we formulate a power allocation problem for single-carrier (SC) frequency division multiple access (FDMA) and orthogonal FDMA (OFDMA) transmission with instantaneous PAPR constraints. Moreover, a statistical approach is considered in which the power variance of the transmitted waveform is controlled. The constraints for the optimization problems are derived as a function of transmit power allocation and two successive convex approximations (SCAs) are derived for each of the constraints based on a change of variables (COV) and geometric programming (GP). In addition, the optimization problem is constrained by a userspecific quality of service (QoS) constraint. Hence, the proposed power allocation strategy jointly takes into account the channel quality and the PAPR characteristics of the power amplifier. The numerical results show that the proposed power allocation strategy can significantly improve the transmission efficiency of power-limited users. Therefore, it is especially beneficial for improving the performance for cell edge users.
Rights: This is the author's version of the work. Copyright (C) 2015 IEEE. IEEE Transactions on Wireless Communications, 15(4), 2015, pp.2458-2473. DOI:10.1109/TWC.2015.2504368. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
URI: http://hdl.handle.net/10119/13001
Material Type: author
Appears in Collections:b10-1. 雑誌掲載論文 (Journal Articles)

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