Fair resource allocation for inband relaying in LTE-Advanced

Liebl, G.; Moraes, Thiago Martins de; Soysal, Akin; Seidel, Eiko

doi:10.1109/mc-ss.2011.5910723

Cited by 17 publications

(18 citation statements)

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“…If the same frequency band is used for the both links and the split is done in the time domain, then it is called an inband relay. There are several studies for the appropriate resource sharing between backhaul and access links and mitigation of interference using the proper resource scheduling techniques [171][172][173][174][175][176][177][178][179][180][181][182][183][184]. CA feature can provide more flexible resource allocation in relaying networks [185,186].…”

Section: Overviewmentioning

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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Section: Overviewmentioning

confidence: 99%

LTE-Advanced Radio Access Enhancements: A Survey

Dehghani

Arshad

MacKenzie

2014

Wireless Pers Commun

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“…Resource partitioning between the backhaul and the direct links is the starting point of our work. We propose different strategies [18,19] which target at achieving fairness in REN. Furthermore, we extend the previous studies to support QoS-aware services in LTE-A REN [20].…”

Section: Our Contributionmentioning

confidence: 99%

“…When no QoS is specified, the partitioning between backhaul and access link depends, in general, on the desired fairness among flows in the system. In this section, we recall the strategies which perform resource partitioning at DeNB for in-band [18] and for out-band [19] relays. The resource partition strategies determine the amount of resources that the DeNB reserves for scheduling the backhaul link of each attached RN.…”

Section: Explicit Resource Partitioning At Denb Between Access and Bamentioning

confidence: 99%

“…The resource partition strategies determine the amount of resources that the DeNB reserves for scheduling the backhaul link of each attached RN. After, the resource partition has taken place the remaining resources are distributed to the macro UEs (M-UEs) using a proportional fair scheduler [18,19]. Furthermore, each RN schedules their subordinated R-UEs using the same proportional fair scheduler.…”

Section: Explicit Resource Partitioning At Denb Between Access and Bamentioning

confidence: 99%

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Resource allocation in relay enhanced LTE-Advanced networks

Moraes

Nisar

González

et al. 2012

J Wireless Com Network

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Relay deployment in future mobile networks is a vital measure to enhance the coverage region of regular base stations, to overcome shadowing dips, and to bring improvements in the cell-edge performance. In this regard, resource allocation in a relay-enhanced scenario is a key design task, and has become a very interesting research topic over the past few years. In this article, we study two main resource allocation aspects of a relay-enhanced scenario. First, we concentrate on the problem of multiplexing the relay backhaul link and the direct link at the base station scheduler for in-band as well as out-band relay operations. We propose three distinct resource partitioning strategies, and evaluate their performance via long-term evolution (LTE) system level simulations in the downlink direction. We observe that even the low implementation effort algorithms bring appreciable improvement for the cell-edge users with or without small loss in performance for the other users, thereby enhancing system fairness. Second, we visit the problem of supporting heterogeneous quality of service (QoS) requirements in a multi-user relay-enhanced network. To this end, we introduce a QoS-aware scheduler which uses packet latency and rate requirements to prioritise the scheduling decisions. Moreover, we also propose a mechanism to support QoS-constrained services to the relayed users, served over two (or more) hops. Employing an LTE system level simulator, for relay-enhanced scenario with a traffic mix having distinct QoS requirements, we demonstrate that the proposed QoS-aware resource allocation strategy significantly increases the fraction of QoS-satisfied users.

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“…Algorithms on resource allocation taking the above mentioned issues into account have been studied in [2][3][4][5][6]. A combination of resource sharing based on the number of Relay-UEs, relay link prioritization, and schedulin� of Relay-UEs achieving max-min fairness is proposed [ .…”

Section: Introductionmentioning

confidence: 99%

Throughput and fairness-balanced resource allocation algorithm in TD-LTE-Advanced relay-enhanced network

Zhao

2013

2013 International Workshop on High Mobility Wireless Communications (HMWC)

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In Release to ofTD-LTE-Advanced standard, the technique of relay is introduced to extend the network coverage, improve the cell-edge performance and increase the fairness among users. Resource allocation is an important issue in relay-enhanced TD-LTE-Advanced system, and in this paper, a downlink resource allocation algorithm considering direct link, backhaul link and access link is proposed. The proposed algorithm can be divided into two stages, in the first stage, users' requirement based dynamic frequency portioning algorithm is proposed to allocate frequency resources between Macro UEs and Relay UEs properly, and in the second stage, a backhaul link resource allocation algorithm based on the information of user queue is presented to improve the performance of Relay-UEs. Simulation results show that the proposed algorithm can improve system throughput and increase fairness among different users at the same time.

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Fair resource allocation for inband relaying in LTE-Advanced

Cited by 17 publications

References 1 publication

LTE-Advanced Radio Access Enhancements: A Survey

LTE-Advanced Radio Access Enhancements: A Survey

Resource allocation in relay enhanced LTE-Advanced networks

Throughput and fairness-balanced resource allocation algorithm in TD-LTE-Advanced relay-enhanced network

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