On achievable rates of the two-user symmetric Gaussian interference channel

Mehanna, Omar; Marcos, John; Jindal, Nihar

doi:10.1109/allerton.2010.5707060

Cited by 9 publications

(5 citation statements)

References 10 publications

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“…Fig. 1 provides the plot of sum rate versus the private message power to noise ratio Q p /σ 2 under symmetric power split (Q p 1,1 = Q p 2,1 = Q p ) [31], [32]. The obtained curves for P B = 30 dB coincide with that in [31, Fig.…”

Section: Simulation Resultssupporting

confidence: 71%

Successive Interference Mitigation in Multiuser MIMO Channels

Che

Tuan

Tam

et al. 2015

IEEE Trans. Commun.

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Motivated by the work of Dahrouj and Yu in applying the Han-Kobayashi transmission strategy for mitigating the intercell interference in a multi-cell multi-user multiple-input single-output interference network (MISO IN), this paper considers splitting messages into private and common parts in a multi-cell multi-user multiple-input multiple-output interference network (MIMO IN). Specifically, the covariances of the private messages and common messages are designed to optimize either the sum rate or the minimal rate. The common messages and private messages are decoded in sequence using successive decoding. This paper shows how these difficult optimization problems can be adequately solved by means of d.c (difference of concave functions) optimization over a simple convex set. Numerical and simulation results also reveal the great advantage of our proposed solutions for various types of INs. In particular, the proposed solutions are shown to outperform the algorithm developed by Dahrouj and Yu for the simpler case of the MISO IN. Index TermsMulti-user interference networks, multi-input multi-output systems, interference mitigation, nonsmooth optimization, d.c. programming

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Section: Simulation Resultssupporting

confidence: 71%

Successive Interference Mitigation in Multiuser MIMO Channels

Che

Tuan

Tam

et al. 2015

IEEE Trans. Commun.

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“…At each RX terminal both common message parts are assumed to be decoded prior to the private message. Optimum values of the power splitting variables λ 1 and λ 2 that maximize the HK achievable sum-rate have been found in [24]- [26].…”

Section: Miso-ic: No Antenna Cooperationmentioning

confidence: 99%

Space-Time Rate Splitting for the MISO BC With Magnitude CSIT

Mosquera

Noels

Ramírez

et al. 2021

IEEE Trans. Commun.

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A novel coding strategy is proposed for a broadcast setting with two transmitter (TX) antennas and two singleantenna receivers (RX). The strategy consists of using spacetime block coding to send a common message (to be decoded by both RXs) across the two TX antennas, while each TX antenna also sends a private message to one of the RXs. The relative weight of the private and common messages from each TX antenna is tuned to maximize the instantaneous achievable sum-rate of the channel. Closed-form expressions for the optimal weight factors are derived. In terms of the generalized degrees of freedom (GDoF) metric, the new scheme is able to achieve the sum-GDoF with finite precision channel state information at the transmitter (CSIT) of the two user broadcast channel. Moreover, as opposed to the existing rate-splitting schemes, the proposed scheme yields instantaneous achievable rates that are independent of the channel phases. This property is instrumental for link adaptation when only magnitude CSIT is available. Our numerical results indeed demonstrate the superiority of the scheme for the 2-user setting in case of magnitude CSIT. Extension to a more general K-user scenario is briefly discussed.

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“…When allowing an asymmetric power splitting with λ 1 = 0 and λ 2 > 0, slightly higher data rates in high SNR regimes can be achieved 8 . For the case when all messages are private with λ 1 = λ 2 = 1 (corresponding to a conventional coding method), the achievable rate reduces to…”

Section: Han-kobayashi Coding and Decodingmentioning

confidence: 99%

“…Two codewords (for private u k and public messages w k ) are superposed with a power splitting of λ k and 1 − λ k . The achievable data rate of HK scheme for a symmetric power splitting case λ 1 = λ 2 is given 8 by…”

Section: Han-kobayashi Coding and Decodingmentioning

confidence: 99%

“…This theory suggests that suppressing undesired interference may not always be the best solution. Even for weak interference cases, the best known rate is achieved by the Han-Kobayashi (HK) scheme [6][7][8] , which uses a super-position coding and a successive decoding. In this paper, we study a potential benefit obtained by the HK scheme for dual-carrier transmissions.…”

Section: Introductionmentioning

confidence: 99%

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Interference management with Han-Kobayashi coding: Dual-carrier coherent optical communications

Koike‐Akino

Kojima

Millar

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

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Koike-Akino, T.; Kojima, K.; Millar, D.S.; Parsons, K.; Kametani, S.; Sugihara, T.; Yoshida, T.; Ishida, K.; Miyata, Y.; Matsumoto, W.; Mizuochi, T. TR2014-060 September 2014 AbstractWe propose to use Han-Kobayashi (HK) coding and dirty-paper coding (DPC) to cope with inter-carrier interference (ICI) in dual-carrier transmissions. We show the considerable benefit of those methods to increase throughput in presence of strong ICI for dense carrier spacing. European Conference on Optical Communications (ECOC 2014)This work may not be copied or reproduced in whole or in part for any commercial purpose. Permission to copy in whole or in part without payment of fee is granted for nonprofit educational and research purposes provided that all such whole or partial copies include the following: a notice that such copying is by permission of Mitsubishi Electric Research Laboratories, Inc.; an acknowledgment of the authors and individual contributions to the work; and all applicable portions of the copyright notice. Copying, reproduction, or republishing for any other purpose shall require a license with payment of fee to Mitsubishi Electric Research Laboratories, Inc. All rights reserved. Abstract We propose to use Han-Kobayashi (HK) coding and dirty-paper coding (DPC) to cope with inter-carrier interference (ICI) in dual-carrier transmissions. We show the considerable benefit of those methods to increase throughput in presence of strong ICI for dense carrier spacing. IntroductionRapid demand of the data-rate increase has necessitated high-throughput technologies, such as faster-than Nyquist 1, 2 and super-channel transmissions [3][4][5] , where each transceiver operates independently while increasing the total throughput without increasing the processing speed. The spectrum efficiency may increase as the carrier spacing decreases. However, intercarrier interference (ICI) can be a major limiting factor to realize a dense carrier spacing, and ICI is often desired to be minimized. For overlapped dual-carrier transmissions, we can model the system as a 2-user interference channel. Han and Kobayashi have shown 6 that a very strong interference cannot limit the channel capacity because interference conveys data sent from the adjacent channel and those message can be decoded for strong interference cases. This theory suggests that suppressing undesired interference may not always be the best solution. Even for weak interference cases, the best known rate is achieved by the Han-Kobayashi (HK) scheme 6-8 , which uses a super-position coding and a successive decoding.In this paper, we study a potential benefit obtained by the HK scheme for dual-carrier transmissions. In addition, we compare the achievable rate of joint decoding and dirty-paper coding (DPC) 9, 10 . The major contributions are twofold: i) we analyze the benefit of HK scheme for different filter parameters, and ii) we investigate the impact of equalizer memory length in dual-carrier transmissions. To the best of authors' knowledge, there has been no literature which ...

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On achievable rates of the two-user symmetric Gaussian interference channel

Cited by 9 publications

References 10 publications

Successive Interference Mitigation in Multiuser MIMO Channels

Successive Interference Mitigation in Multiuser MIMO Channels

Space-Time Rate Splitting for the MISO BC With Magnitude CSIT

Interference management with Han-Kobayashi coding: Dual-carrier coherent optical communications

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