Business Impact of Relay Deployment for Coverage Extension in 3GPP LTE-Advanced

Lang, Ekkehard; Redana, Simone; Raaf, Bernhard

doi:10.1109/iccw.2009.5208000

Cited by 79 publications

(35 citation statements)

References 7 publications

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“…A basic trace file may contain event entries, detailed packet information from wired or wireless channel and routing information. Various trace file formats are explained in [28]. Simulation results shown later in this document are mostly gathered from the trace files but occasionally separate runtime logging is needed in order to obtain desired information.…”

Section: Network Simulatormentioning

confidence: 99%

Handover performance in the IEEE 802.16 mobile networks

Hytönen¹,

Sayenko²,

Martikainen³

et al. 2012

Proceedings of the 3rd International ICST Conference on Simulation Tools and Techniques

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In broadband wireless access network, continuous high speed data communication can be provided to mobile subscribers by well designed mobility management, where handover is a key element in maintaining air link to base station even in high velocity. When a mobile station changes its geographical position, it may also need to change its attachment point in the network in order to retain the quality of the connection. This is when a controlled handover is conducted. In the thesis, hard handover in IEEE 802.16 WiMAX network is studied by means of simulations in NS-2 network simulator. The studied handover type always causes a short interruption time before new connections are established with target base station. During this time user data cannot be transferred. Therefore, it is important to use handover optimization methods to decrease the interruption time, as well as avoid redundant handovers to minimize unnecessary connection drops. These topics are examined in this thesis. Suomenkielinen tiivistelmä: Langattomassa laajakaistaverkossa liikkuville käyt-täjille voidaan tarjota jatkuva nopea tietoliikenneyhteys hyvin suunnitellun liikkuvuuden hallinnan avulla, missä yhteysvastuun vaihto tarjoaa keinon säilyttää langaton yhteys tukiasemaan suuressakin nopeudessa. Mobiilipäätelaitteen vaihtaessa maantieteellistä sijaintiaan voi olla tarpeellista vaihtaa myös sen liityntäpistettä verkossa, jotta yhteyden laatu voitaisiin säilyttää. Tässä tilanteessa suoritetaan hallittu yhteysvastuun vaihto. Tutkielmassa tutkitaan hard handover -tyyppistä yhteysvastuun vaihtoa IEEE 802.16 WiMAX -verkossa NS-2-verkkosimulaattorin avulla. Tutkittu yhteysvastuun vaihdon tyyppi aiheuttaa aina lyhyen katkoksen ennen uusien yhteyksien luomista kohdetukiasemalle. Tämän katkoksen aikana ei voida siirtää käyttäjän dataa. Tästä syystä on tärkeää käyttää yhteysvastuun vaihdon optimointitapoja katkoksen lyhentämiseksi, ja välttää turhia yhteysvastuun vaihtoja yhteyskatkosten minimoimiseksi. Näitä aiheita käsitellään tässä tutkielmassa.

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Section: Network Simulatormentioning

confidence: 99%

Handover performance in the IEEE 802.16 mobile networks

Hytönen¹,

Sayenko²,

Martikainen³

et al. 2012

Proceedings of the 3rd International ICST Conference on Simulation Tools and Techniques

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“…Deployment of RNs brings many benefits such as coverage, capacity and cell edge throughput enhancements to the LTE-Advanced network [208,209]. At the expense of deployment cost [210,211], achievable gains in relaying networks substantially depend on the location and number of deployed relay nodes. In [212], three scenarios were proposed based on the number of relays per cell (RPC), and network performance was evaluated using Monte-Carlo simulation.…”

Section: Technical Aspectsmentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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Long Term Evolution Advanced (LTE-Advanced) is the next step in LTE evolution and allows operators to improve network performance and service capabilities through smooth deployment of new techniques and technologies. LTE-Advanced uses some new features on top of the existing LTE standards to provide better user experience and higher throughputs. Some of the most significant features introduced in LTE-Advanced are carrier aggregation, enhancements in heterogeneous networks, coordinated multipoint transmission and reception, enhanced Multiple Input Multiple Output (MIMO) usage and deployment of relay nodes in the radio network. Mentioned features are mainly aimed to enhance the radio access part of the cellular networks. This survey article presents an overview of the key radio access features and functionalities of the LTE-Advanced radio access network, supported by the simulation results. We also provide a detailed review of the literature together with a very rich list of the references for each of the features. An LTE-Advanced roadmap and the latest updates and trends in LTE markets are also presented.

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“…Furthermore, RNs do not have strict installation guidelines with respect to radiation, visual disturbance, and planning regulation. Therefore, relaying is regarded a cost-efficient technology [1]. Previous technical studies have further shown that RNs promise to increase the network capacity and to better distribute resources in the cell, or extend the cell coverage area [2,3].…”

Section: Introductionmentioning

confidence: 99%

Automated uplink power control optimization in LTE-Advanced relay networks

Bulakçı

Awada

Saleh

et al. 2013

J Wireless Com Network

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Relaying is standardized in 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE)-Advanced Release 10 as a promising cost-efficient enhancement to existing radio access networks. Relay deployments promise to alleviate the limitations of conventional macrocell-only networks such as poor indoor penetration and coverage holes. However, to fully exploit the benefits of relaying, power control (PC) in the uplink should be readdressed. In this context, PC optimization should jointly be performed on all links, i.e., on the donor-evolved Node B (DeNB)-relay node (RN), the DeNB-user equipment (UE) link, and the RN-UE link. This ensures proper management of interference in the network besides attaining a receiver dynamic range which ensures the orthogonality of the single-carrier frequency-division multiple access (SC-FDMA) system. In this article, we propose an automated PC optimization scheme which jointly tunes PC parameters in relay deployments. The automated PC optimization can be based on either Taguchi's method or a meta-heuristic optimization technique such as simulated annealing. To attain a more homogeneous user experience, the automated PC optimization scheme applies novel performance metrics which can be adapted according to the operator's requirements. Moreover, the performance of the proposed scheme is compared with a reference study that assumes a scenario-specific manual learn-by-experience optimization. The evaluation of the optimization methods within the LTE-Advanced uplink framework is carried out in 3GPP-defined urban and suburban propagation scenarios by applying the standardized LTE Release 8 PC scheme. Comprehensive results show that the proposed automated PC optimization can provide similar performance compared to the reference manual optimization without requiring direct human intervention during the optimization process. Furthermore, various trade-offs can easily be achieved; thanks to the new performance metrics.

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Business Impact of Relay Deployment for Coverage Extension in 3GPP LTE-Advanced

Cited by 79 publications

References 7 publications

Handover performance in the IEEE 802.16 mobile networks

Handover performance in the IEEE 802.16 mobile networks

LTE-Advanced Radio Access Enhancements: A Survey

Automated uplink power control optimization in LTE-Advanced relay networks

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