Enhanced performance of heterogeneous networks through full-duplex relaying

Alves, Hirley; Bennis, Mehdi; Souza, Richard Demo

doi:10.1186/1687-1499-2012-365

Cited by 4 publications

(1 citation statement)

References 36 publications

(66 reference statements)

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“…However, FD and multi-tier HetNet induce various interference issues. The most prominent interferences in inband FDR are self-, inter-relay, and inter-cell interferences [120,121].…”

Section: B Relay Nodementioning

confidence: 99%

Interference Management in 5G and Beyond Network: Requirements, Challenges and Future Directions

et al. 2021

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In the modern technological world, wireless communication has taken a massive leap from the conventional communication system to a new radio communication network. The novel concept of Fifth Generation (5G) cellular networks brings a combination of a diversified set of devices and machines with great improvement in a unique way compared to previous technologies. To broaden the user's experience, 5G technology provides the opportunity to meet the people's potential necessities for efficient communication. Specifically, researchers have designed a network of small cells with unfamiliar technologies that have never been introduced before. The new network design is an amalgamation of various schemes such as Heterogeneous Network (HetNet), Device-to-Device (D2D) communication, Internet of Things (IoT), Relay Node (RN), Beamforming, Massive Multiple Input Multiple Output (M-MIMO), millimeter-wave (mm-wave), and so on. Also, enhancement in predecessor's techniques is required so that new radio is compatible with a traditional network. However, the disparate technological models' design and concurrent practice have created an unacceptable intervention in each other's signals. These vulnerable interferences have significantly degraded the overall network performance. This review article scrutinizes the issues of interferences observed and studied in different structures and techniques of the 5G and beyond network. The study focuses on the various interference effect in HetNet, RN, D2D, and IoT. Furthermore, as an in-depth literature review, we discuss various types of interferences related to each method by studying the state-of-the-art relevant research in the literature. To provide new insight into interference issue management for the next-generation network, we address and explore various relevant topics in each section that help make the system more robust. Overall, this review article's goal is to guide all the stakeholders, including students, operators, engineers, and researchers, aiming to explore this promising research theme, comprehend interferences and their types, and related techniques to mitigate them. We also state methodologies proposed by the 3 rd Generation Partnership Project (3GPP) and present the promising and feasible research directions toward this challenging topic for the realization of 5G and beyond network.

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“…However, FD and multi-tier HetNet induce various interference issues. The most prominent interferences in inband FDR are self-, inter-relay, and inter-cell interferences [120,121].…”

Section: B Relay Nodementioning

confidence: 99%

Interference Management in 5G and Beyond Network: Requirements, Challenges and Future Directions

et al. 2021

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QoS Improved Energy Efficient Cooperative Relaying in Heterogeneous Networks Using Heterogeneous Relays

Bharathi¹,

Nithyanandan

2017

Wireless Pers Commun

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Joint user association and resource allocation in UE-Relay assisted heterogeneous networks

Mezzavilla

Somasundaram

Zorzi

2014

2014 IEEE International Conference on Communications Workshops (ICC)

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We propose a novel approach that aims at extending femtocell coverage by enabling nearby idle User Equipments (UEs) in the proximity of femtocells to serve as relays, called UE-Relays. The users that would nominally connect to macrocells are offloaded to femtocells via the coverage extension provided by the UE-Relays. The problem of determining the optimal subset of idle UEs to be enabled as UE-Relays and the user association to these relays is a non-trivial problem because it depends on the projected capacity of the relay access and backhaul.We formulate the user association as an optimization problem that maximizes the network-wide log utility of the user rates. Our simulation results corroborate our expectations: overlaying a femtocelltier with UE-Relays will increase the user throughput and the network throughput. In addition, we compare our approach with a MAX-SINR based user association, and evaluate the performance profiles at varying scenario settings. The proposed rate-based scheme outperforms the SINR-based cell selection, thus validating the idea that, in heterogeneous cellular networks, user association should be performed based on the load rather than relying merely on link quality indicators

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Enhanced performance of heterogeneous networks through full-duplex relaying

Cited by 4 publications

References 36 publications

Interference Management in 5G and Beyond Network: Requirements, Challenges and Future Directions

Interference Management in 5G and Beyond Network: Requirements, Challenges and Future Directions

QoS Improved Energy Efficient Cooperative Relaying in Heterogeneous Networks Using Heterogeneous Relays

Joint user association and resource allocation in UE-Relay assisted heterogeneous networks

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