SC-FDMA with iterative multiuser detection: improvements on power/spectral efficiency

Yune, Tae-Won; Choi, Chan-Ho; Im, Gi-Hong; Lim, Jong Bong; Kim, Eung-Sun; Cheong, Yoonchae; Kim, Kiho

doi:10.1109/mcom.2010.5434389

Cited by 54 publications

(19 citation statements)

References 12 publications

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“…fit.) coefficients of the numerical integration function (13) (19) and its inverse function (20) for various QAM constellations in Table I. The curve fitting function establishes an approximate relation between the input SINR and the output VAR for the soft decider.…”

Section: A Quality-of-convergence (Qoc)mentioning

confidence: 99%

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Joint Transceiver Design for Iterative FDE

Han

Yin

Bai

et al. 2013

IEEE Trans. Signal Process.

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This paper considers the wideband single-carrier transmission through frequency-selective wireless channels with a quality-of-service (QoS) requirement. Power allocation at the transmitter and iterative frequency domain equalization (FDE) at the receiver are jointly designed to achieve the target QoS with minimum transmission power consumption. The joint transceiver design is based on a novel evolutional analysis framework for iterative FDE without the aid of decoding during the iterative processing. It introduces a set of QoS and quality-of-convergence (QoC) constraints, which recast the design problem into a convex and structured joint QoS/QoC constrained power allocation problem. Thanks to the underlying sparsity in the mathematical structure of the problem, a specific interior-point method (IPM) solver is developed, which significantly reduces the computational complexity, as compared to the generic solvers. A duality gap analysis is then applied to show that the performance gap between the numerical algorithms and the theoretical optimum can be controlled by adjusting its key parameters, which, in turn, determines the convergence behavior of the iterative solver. Extensive simulation results are given to support the mathematical development of the problem.Index Terms-Joint transmit-receive equalization, frequency domain equalization, iterative processing, power allocation, interior-point method.

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Section: A Quality-of-convergence (Qoc)mentioning

confidence: 99%

“…Moreover, the basic concept of iterative FDE has already been extended to single-user multiplexing (SU-MIMO) systems [13]- [15] and to multiple access (MAC) systems [16], [17]. Further applications and extensions of iterative FDE can be found in [3], [18]- [20] and the references therein.…”

Section: Introductionmentioning

confidence: 99%

Joint Transceiver Design for Iterative FDE

Han

Yin

Bai

et al. 2013

IEEE Trans. Signal Process.

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“…In [8], a reduced complexity algorithm was developed for the above-mentioned FD-DFEs, which achieved the same performance as its higher-complexity benchmark. For the sake of further improving the achievable performance, invoking FEC coding was proposed in [9], [10], where either hard-or soft-decisions may be fed back to the equaliser by the FEC decoder. More recently, the three-stage MMSE-assisted turbo FDE principle was proposed in [11], which includes a SISO FD-LE, a unity-rate inner code and an irregular outer recursive convolutional code.…”

Section: Introductionmentioning

confidence: 99%

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance

Zhang

Yang

Hanzo

2012

2012 IEEE Vehicular Technology Conference (VTC Fall)

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“…The cost of feedback is high when the passingby traffic is heavy. The multi-user interference cancelation methods discussed in [7], [8] rely on accurate estimation of channel state information (CSI) of MMUs besides SSI, which is infeasible due to the rapid variation of the channel and short communication period.…”

Section: Introductionmentioning

confidence: 99%

Robust designs for femtocell networks with interference from macrocell users

Zhou

2011

2011 IEEE GLOBECOM Workshops (GC Wkshps)

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Femtocell networking is a promising solution to improve the indoor coverage issue and enhance system throughput for next generation wireless networks. However, one of the main concerns to put through femtocells is the interference issue between macrocell and femtocell networks. In this paper, we consider femtocell uplink transmissions with dynamic interference from macrocell users. Without information exchange or subcarrier reallocation between femtocell and macrocell at any base station, we propose a precoded frequency division multiple access (P-FDMA) transmission with novel detectors to mitigate macrocell-to-femtocell uplink co-channel interference (MFU-CCI). It is shown that our design collects multipath diversity without estimating the interference channels and is robust to MFU-CCI. Simulation results validate our findings.

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SC-FDMA with iterative multiuser detection: improvements on power/spectral efficiency

Cited by 54 publications

References 12 publications

Joint Transceiver Design for Iterative FDE

Joint Transceiver Design for Iterative FDE

Frequency-Domain Turbo Equalisation in Coded SC-FDMA Systems: EXIT Chart Analysis and Performance

Robust designs for femtocell networks with interference from macrocell users

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