Coordinated multipoint transmission and reception in LTE-advanced: deployment scenarios and operational challenges

Lee, Daewon; Seo, Hanbyul; Clerckx, Bruno; Hardouin, Eric; Mazzarese, David; Nagata, Satoshi; Sayana, Krishna

doi:10.1109/mcom.2012.6146494

Cited by 650 publications

(473 citation statements)

References 4 publications

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“…[4] [5,6] maximum benefits from discussing approaches. CSI cannot always be estimated accurately for all the users or BSs which highlights the need for an alternate solution to the ICI problem with minimum or no depending on the channel state.…”

Section: Coordinated Processing (Cp)mentioning

confidence: 99%

Dynamic Fractional Frequency Reuse Diversity Design for Intercell Interference Mitigation in Nonorthogonal Multiple Access Multicellular Networks

Mehmood

Niaz

Kim

2018

Wireless Communications and Mobile Computing

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Nonorthogonal multiple access (NOMA) is one of the few promising techniques that can ensure the achievement of benefits foreseen in next-generation 5G wireless networks and beyond. By using superposition coding, NOMA allows multiple users to share the same time and frequency resources, thereby enhancing user connectivity, spectral efficiency, and a considerable increase in user throughput. Interference mitigation is an important consideration in NOMA and is considerably more influencing in multicellular environments. First, a brief description of the impairments that can arise in a NOMA cellular network along with responsible factors is provided. Second, different approaches adopted to minimize these impairments are discussed. Finally, a possible solution is proposed that consists of a coordinated approach between the individual cells in the NOMA domain to minimize interferences and improve user throughput. Adaptive fractional frequency reuse (FFR) is used to allocate distinct frequency resources to edge users of different cells to minimize intercell interference in NOMA. Simulation results prove that the proposed NOMA scheme plays an important role in minimizing impairment effects and enhancing the SINR and the throughput performance of edge users while ensuring fairness in its design.

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Section: Coordinated Processing (Cp)mentioning

confidence: 99%

Dynamic Fractional Frequency Reuse Diversity Design for Intercell Interference Mitigation in Nonorthogonal Multiple Access Multicellular Networks

Mehmood

Niaz

Kim

2018

Wireless Communications and Mobile Computing

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“…There are several studies showing the gains produced by techniques similar to CoMP and use of robust mechanisms of interference suppression in the received signal quality for LTE-A [20] and 5G HetNets [21]. However, all of them demand significant increase in processing complexity at the transmitter or at the receiver, which may impose a limitation in their use for low-latency services, expected to be a part of next generation of mobile networks [22].…”

Section: B Coordinated Multipointmentioning

confidence: 99%

5G – Wireless Communications for 2020

Barreto

Faria²,

Almeida³

et al. 2016

JCIS

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Abstract-Existing cellular technologies are rapidly coming to their performance limits. This is due not only to the growth in data traffic and in the number of connected terminals, but also because we are on the verge of new era, where everyone and everything will be connected, with more demanding and varied requirements that cannot be satisfied by current networks. On account of this, efforts are being made all over the world to design new wireless technologies that will support the expected demands for the next decade. These technologies, embraced under the commercial name of 5 th generation, are currently being studied, and in this tutorial paper we will give an overview of the main trends that are likely to make their way in the next-generation standards.

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“…9 The pseudocovariance is necessary for characterizing complex random vector that is improper [42]- [44].…”

Section: Pda Based Soft Mudmentioning

confidence: 99%

Is the Low-Complexity Mobile-Relay-Aided FFR-DAS Capable of Outperforming the High-Complexity CoMP?

Yang

Alanis

et al. 2016

IEEE Trans. Veh. Technol.

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Abstract-Coordinated multi-point transmission/reception aided collocated antenna system (CoMP-CAS) and mobile relay assisted fractional frequency reuse distributed antenna system (MR-FFR-DAS) constitute a pair of virtual-MIMO based technical options for achieving high spectral efficiency in interference-limited cellular networks. In practice both techniques have their respective pros and cons, which are studied in this paper by evaluating the achievable cell-edge performance on the uplink of multicell systems. We show that assuming the same antenna configuration in both networks, the maximum available cooperative spatial diversity inherent in the MR-FFR-DAS is lower than that of the CoMP-CAS. However, when the cell-edge MSs have a low transmission power, the lower-complexity MR-FFR-DAS relying on the simple single-cell processing may outperform the CoMP-CAS by using the proposed soft-combining based probabilistic data association (SC-PDA) receiver, despite the fact that the latter scheme is more complex and incurs a higher cooperation overhead. Furthermore, the benefits of the SC-PDA receiver may be enhanced by properly selecting the MRs' positions. Additionally, we show that the performance of the cell-edge MSs roaming near the angular direction halfway between two adjacent RAs (i.e. the "worst-case direction") of the MR-FFR-DAS may be more significantly improved than that of the cell-edge MSs of other directions by using multiuser power control, which also improves the fairness amongst cell-edge MSs. Our simulation results show that given a moderate MS transmit power, the proposed MR-FFR-DAS architecture employing the SC-PDA receiver is capable of achieving significantly better bit-error rate (BER) and effective throughput across the entire cell-edge area, including even the worst-case direction and the cell-edge boundary, than the CoMP-CAS architecture.Index Terms-Base station cooperation, coordinated multipoint (CoMP), fractional frequency reuse, distributed antenna system (DAS), multicell uplink, mobile relay.

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Coordinated multipoint transmission and reception in LTE-advanced: deployment scenarios and operational challenges

Cited by 650 publications

References 4 publications

Dynamic Fractional Frequency Reuse Diversity Design for Intercell Interference Mitigation in Nonorthogonal Multiple Access Multicellular Networks

Dynamic Fractional Frequency Reuse Diversity Design for Intercell Interference Mitigation in Nonorthogonal Multiple Access Multicellular Networks

5G – Wireless Communications for 2020

Is the Low-Complexity Mobile-Relay-Aided FFR-DAS Capable of Outperforming the High-Complexity CoMP?

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