Congestion-Aware Handover in LTE Systems for Load Balancing in Transport Network

Marwat, Safdar Nawaz Khan; Meyer, Sven; Weerawardane, Thushara; Goerg, Carmelita

doi:10.4218/etrij.14.0113.1034

Cited by 21 publications

(10 citation statements)

References 19 publications

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“…DC enables UEs to have connectivity to two different cells at the same time [79][80][81][82][83][84][85][86]. One connection is established to a macro cell and another to a small cell [87].…”

Section: B Dual Connectivity (Dc)mentioning

confidence: 99%

“…One significant feature that has been introduced to solve mobility problems in 4G and 5G networks is mobility functions under the SON [42,57,84,106,[133][134][135][136][137][138][139][140], which may further be developed and kept as one of the main components in the 6G system as well. The SON feature is one of three main sub-networks that has been introduced under the Self-Organization Network in 4G and 5G networks, as illustrated in Figure 9.…”

Section: A Hpo Modelsmentioning

confidence: 99%

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Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

et al. 2020

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Ensuring a seamless connection during the mobility of various User Equipment (UE) will be one of the major challenges facing the practical implementation of the Fifth Generation (5G) networks and beyond. Several key determinants will significantly contribute to numerous mobility challenges. One of the most important determinants is the use of millimeter waves (mm-waves) as it is characterized by high path loss. The inclusion of various types of small coverage Base Stations (BSs), such as Picocell, Femtocell and drone-based BSs is another challenge. Other issues include the use of Dual Connectivity (DC), Carrier Aggregation (CA), the massive growth of mobiles connections, network diversity, the emergence of connected drones (as BS or UE), ultra-dense network, inefficient optimization processes, central optimization operation, partial optimization, complex relation in optimization operations, and the use of inefficient handover decision algorithms. The relationship between these processes and diverse wireless technologies can cause growing concerns in relation to handover associated with mobility. The risk becomes critical with high mobility speed scenarios. Therefore, mobility issues and their determinants must be efficiently addressed. This paper aims to provide an overview of mobility management in 5G networks. The work examines key factors that will significantly contribute to the increase of mobility issues. Furthermore, the innovative, advanced, efficient, and smart handover techniques that have been introduced in 5G networks are discussed. The study also highlights the main challenges facing UEs' mobility as well as future research directions on mobility management in 5G networks and beyond.

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Section: B Dual Connectivity (Dc)mentioning

confidence: 99%

Section: A Hpo Modelsmentioning

confidence: 99%

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

et al. 2020

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“…This means that the user breaks its connection to current serving node and setting up a new connection to another serving node. Hence, the user equipment (UE) is disconnected for an instant from all nearby cells [30].…”

Section: Related Workmentioning

confidence: 99%

SCRAS Server-Based Crosslayer Rate-Adaptive Video Streaming over 4G-LTE for UAV-Based Surveillance Applications

et al. 2019

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This research focuses on intelligent unmanned aerial vehicle (UAV)-based, real-time video surveillance to ensure better monitoring and security of remote locations over 4G-LTE cellular networks by maximizing end-user quality of experience (QoE). We propose a novel server-based crosslayer rate-adaptive scheme (SCRAS) for real-time video surveillance over 4G-LTE networks using UAVs. Our key contributions are: (1) In SCRAS, mobile UAVs having preprogrammed flight co-ordinates act as servers, streaming real-time video towards a remote client; (2) server-side video rate adaptation occurs in 4G-LTE based on the physical characteristics of the received signal conditions due to variations in the wireless channel and handovers; (3) SCRAS is fully automated and independent of client assistance for rate adaptation, as it is intended for real-time, mission-critical surveillance applications; (4) SCRAS ensures that during rate adaptation, the current video frame should not be damaged by completing the current group of packet (GoP) before adaptation. Our simulations in NS3 provide credible evidence that SCRAS outperforms recently proposed schemes in providing better QoE for real-time, rate-adaptive, video surveillance over 4G-LTE under varying channel quality and frequent handovers that occur during flight by UAVs.

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“…Most of the existing works on mobility management [16,25] focus on layer-3 schemes to extend the support of Mobile IP (MIP) to vehicular networks but not on the handover decision parameters. The handover decision is mostly based on either of the RSSI [14] or LET [30,15] metric. To efficiently support the dissemination of high resolution and delay sensitive telescreen content in urban areas, we propose a handover decision mechanism based on both the RSSI and LET parameters to select a stable link and avoid unnecessary handovers.…”

Section: Vehicular Network and Handover Decisionmentioning

confidence: 99%

Quality of service and mobility aware in-vehicle telescreen service architecture

et al. 2017

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Original scientific paper This paper presents an architecture for providing quality of service (QoS) and mobility-aware telescreen services in vehicular networks, named "in-vehicle telescreen" (IVT). Providing seamless imagery effect is a key challenge in the distribution of high-resolution and delay-sensitive infotainment IVT services under mobile and varying network conditions. In the IVT architecture, new functions of information and service quality management are introduced to manage the user registrations, service advertisements, network information, and service quality. We propose an adaptive selection of application QoS parameters and an IVT handover decision mechanism for providing seamless imagery effect and enhance user's multimedia perception. The proposed architecture can provide a sustainable channel rate based selection of content source, media resolution, and codec to improve the perceived visual quality. Furthermore, the paper presents a Link Expiration Time and Received Signal Strength Indicator based IVT handover decision mechanism that can minimize the number of handovers by selecting a stable path. An extensive simulation is performed to show the effectiveness of the proposed mechanisms. Keywords: handover decision mechanism; in-vehicle telescreen; quality-of-experience; quality-of-service; vehicular networks Arhitektura kvalitete usluge i usluge tele-ekrana u pokretnim voznim mrežamaIzvorni znanstveni članak U radu se predstavljena arhitektura za osiguranje kvalitete usluge (quality of service -QoS) i usluge tele-ekrana u voznim mrežama koje reagiraju na pokretljivost, nazvane teleekran unutar vozila -"in-vehicle telescreen" (IVT). Osiguranje nepromjenljive slike je ključni izazov u pružanju IVT usluga visoke rezolucije u mobilnim uvjetima i uvjetima variranja mreže. U IVT arhitekturi uvode se nove funkcije upravljanja kvalitetom informacija i usluga u vođenju registracije korisnika, oglašavanju usluga, obavijesti o mreži, i kvaliteti usluge. Predlažemo prilagodljiv izbor QoS parametara te mehanizam za donošenje odluke o prekapčanju IVT kako bi se osigurala čista slika i poboljšala multimedijska percepcija korisnika. Predloženom se arhitekturom može osigurati izbor izvora sadržaja zasnovan na prosječnoj kanalskoj brzini, rezolucija medija i kodek (koder-dekoder) za poboljšanje postojane vizualne kvalitete. Nadalje, u radu se predstavlja mehanizam za donošenje odluke o prekapčanju IVT temeljen na pokazivaču vremena isticanja veze i pokazivaču snage primljenog signala koji može smanjiti broj prekapčanja izborom stabilne staze. Provedena je opsežna simulacija kako bi se pokazala učinkovitost predloženih mehanizama. Ključne riječi: mehanizam za donošenje odluke o prekapčanju; teleekran u vozilu; kvaliteta iskustva; kvaliteta usluge; vozne mreže

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Congestion-Aware Handover in LTE Systems for Load Balancing in Transport Network

Cited by 21 publications

References 19 publications

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

Key Challenges, Drivers and Solutions for Mobility Management in 5G Networks: A Survey

SCRAS Server-Based Crosslayer Rate-Adaptive Video Streaming over 4G-LTE for UAV-Based Surveillance Applications

Quality of service and mobility aware in-vehicle telescreen service architecture

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