Multi-connectivity functional architectures in 5G

Ravanshid, Azad; Rost, Peter; Michalopoulos, Diomidis S.; Phan, Vinh Van; Bakker, H.C.M. de; Aziz, Danish; Tayade, Shreya; Schotten, Hans D.; Wong, Stan; Holland, Oliver

doi:10.1109/iccw.2016.7503786

Cited by 71 publications

(49 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Nevertheless, the common MAC approach offers the advantage of fast information exchange between the different multi-connectivity legs. This facilitates coordinated scheduling, interference mitigation, and other schemes related to MAC scheduling [14].…”

Section: Multi-connectivity (Mc)mentioning

confidence: 99%

Network Slicing to Enable Scalability and Flexibility in 5G Mobile Networks

et al. 2017

Self Cite

View full text Add to dashboard Cite

We argue for network slicing as an efficient solution that addresses the diverse requirements of 5G mobile networks, thus providing the necessary flexibility and scalability associated with future network implementations. We elaborate on the challenges that emerge when we design 5G networks based on network slicing. We focus on the architectural aspects associated with the coexistence of dedicated as well as shared slices in the network. In particular, we analyze the realization options of a flexible radio access network with focus on network slicing and their impact on the design of 5G mobile networks. In addition to the technical study, this paper provides an investigation of the revenue potential of network slicing, where the applications that originate from such concept and the profit capabilities from the network operator's perspective are put forward.

show abstract

Section: Multi-connectivity (Mc)mentioning

confidence: 99%

Network Slicing to Enable Scalability and Flexibility in 5G Mobile Networks

et al. 2017

Self Cite

View full text Add to dashboard Cite

show abstract

“…Next, we can directly conclude (20) from (23) by substituting f (θ) = sin(θ − θ) in (23). For α = 2, which is a typical value for the path loss exponent for LoS mmW links, (20) can be simplified into (21) by taking the integration by parts in (20).…”

Section: A Average Achievable Rate For Cachingmentioning

confidence: 99%

Caching Meets Millimeter Wave Communications for Enhanced Mobility Management in 5G Networks

Semiari

Saad

Bennis

et al. 2018

IEEE Trans. Wireless Commun.

View full text Add to dashboard Cite

One of the most promising approaches to overcome the uncertainty and dynamic channel variations of millimeter wave (mmW) communications is to deploy dual-mode base stations that integrate both mmW and microwave (µW) frequencies. If properly designed, such dual-mode base stations can enhance mobility and handover in highly mobile wireless environments. In this paper, a novel approach for analyzing and managing mobility in joint µW-mmW networks is proposed. The proposed approach leverages device-level caching along with the capabilities of dual-mode small base stations (SBSs) to minimize handover failures, reduce inter-frequency measurement energy consumption, and provide seamless mobility in emerging dense heterogeneous networks. First, fundamental results on the caching capabilities, including caching probability and cache duration are derived for the proposed dual-mode network scenario. Second, the average achievable rate of caching is derived for mobile users. Moreover, the impact of caching on the number of handovers (HOs), energy consumption, and the average handover failure (HOF) is analyzed. Then, the proposed cache-enabled mobility management problem is formulated as a dynamic matching game between mobile user equipments (MUEs) and SBSs. The goal of this game is to find a distributed handover mechanism that, under network constraints on HOFs and limited cache sizes, allows each MUE to choose between: a) executing an HO to a target SBS, b) being connected to the macrocell base station (MBS), or c) perform a transparent HO by using the cached content. The formulated matching game inherently captures the dynamics of the mobility management problem caused by HOFs. To solve this dynamic matching problem, a novel algorithm is proposed and its convergence to a two-sided dynamically stable HO policy for MUEs and target SBSs is proved. Numerical results corroborate the analytical derivations and show that the proposed solution will provides significant reductions in both the HOF and energy consumption of MUEs, resulting in an enhanced mobility management for heterogeneous wireless networks with mmW capabilities.

show abstract

“…Multi-connectivity in literature: Although a relatively recent topic, multi-connectivity has appeared in a number of relevant publications so far. An extensive view of the underlying architecture supporting multi-connectivity across different RATs is provided in [4], [5], where it was concluded that such multi-RAT architecture should employ common high layer protocol as well as centralized radio resource management. Specific characteristics and requirements of multi-connectivity when applied to millimeter-Wavelength (mmW) networks are provided in [6], [7].…”

Section: A the Concept Of Multi-connectivitymentioning

confidence: 99%

5G Multi-Connectivity with Non-Ideal Backhaul: Distributed vs Cloud-Based Architecture

Michalopoulos¹,

Maeder²,

Kolehmainen³

2018

2018 IEEE Globecom Workshops (GC Wkshps)

Self Cite

View full text Add to dashboard Cite

We investigate the throughput performance of multiconnectivity over Heterogeneous Networks (HetNets). Specifically, we examine the effect of non-ideal backhaul on the throughput for two architecture scenarios, namely: i) The distributed HetNet scenario where the multi-connectivity anchor is co-located with the macro cell; ii) the cloud-based HetNet scenario, where the multi-connectivity anchor point is located at a centralized network point. An extensive set of simulations is conducted, followed by an investigation of the effect of the backhaul latency, packet file size and offered load on the throughput. It is shown that the cloud-based HetNet architecture leads to a superior throughput performance than that of the distributed architecture. Moreover, it is shown that the backhaul delay considerably affects the overall throughput for both architecture options.

show abstract

Multi-connectivity functional architectures in 5G

Cited by 71 publications

References 5 publications

Network Slicing to Enable Scalability and Flexibility in 5G Mobile Networks

Network Slicing to Enable Scalability and Flexibility in 5G Mobile Networks

Caching Meets Millimeter Wave Communications for Enhanced Mobility Management in 5G Networks

5G Multi-Connectivity with Non-Ideal Backhaul: Distributed vs Cloud-Based Architecture

Contact Info

Product

Resources

About