Survey of intercell interference mitigation techniques in LTE downlink networks

Daeinabi, A.; Sandrasegaran, Kumbesan; Zhu, Xiaoyue

doi:10.1109/atnac.2012.6398059

Cited by 31 publications

(24 citation statements)

References 20 publications

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“…The first approach spreads the users transmission over a distributed set of sub-carriers aiming at interference randomization and frequency diversity gain achievement [8,9]. It requires an extra signal processing and latency [7]. The second approach requires the deployment of multiple antennas UE aiming at reducing the interference effects based on spatial diversity (beamforming) [10,11].…”

Section: Introductionmentioning

confidence: 99%

“…For this reason, several researches [5][6][7] have treated the inter-cell interference problem by approaches of: (1) interference randomization (2) interference cancellation (3) interference avoidance/coordination. The first approach spreads the users transmission over a distributed set of sub-carriers aiming at interference randomization and frequency diversity gain achievement [8,9].…”

Section: Introductionmentioning

confidence: 99%

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Interference Mitigation Through Inter-Cell Interference Coordination Using Virtual PRB Allocation in 4G Networks

Hassen

Afif

Tabbane

2016

Wireless Pers Commun

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This paper proposes a distributed and coordinated resource allocation algorithm in multi-cell MIMO-OFDMA systems. Firstly, each cell classifies mobile users into celledge and cell-center users based on a dynamic threshold aiming to avoid throughput loss. Secondly, each cell independently and dynamically allocates physical resource blocks (PRBs) to its cell-center users using a recursive resource allocation algorithm where the effective SINR metric is investigated. After that, each cell aggregates the unused subcarriers by its cell-center users to construct virtual PRBs. These latter are intended to be allocated to cell-edge users. Here, each cell informs its neighboring cells, via messages exchange, about its unused sub-carriers and their corresponding SINRs. If two or more cells share the same unused sub-carrier, a new collision avoidance algorithm is applied to avoid the inter-cell interference. Then, each cell constructs its virtual PRBs based on radio resource exchange between eNodeBs. After virtual PRB allocation, a power allocation procedure is performed and an adaptive modulation and coding algorithm is executed. Simulation results demonstrate that the proposed scheme permits to enhance the system performance in cell-edge and cell-center region compared to well-known algorithms.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Interference Mitigation Through Inter-Cell Interference Coordination Using Virtual PRB Allocation in 4G Networks

Hassen

Afif

Tabbane

2016

Wireless Pers Commun

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show abstract

“…In FFR-based schemes, the users with a stronger signal quality use a lower reuse factor scheme (such as RF1) and the users having lower SINR use a higher reuse factor schemes (such as RF3) [2].…”

Section: Fractional Frequency Reuse (Ffr)mentioning

confidence: 99%

“…In dynamic scheme, resource allocation is dynamically updated based on the variations of network conditions. Dynamic allocations are done after a very short time period [2,11]. In the following subsections, frequency reuse schemes are classified into static, semi-static and dynamic schemes.…”

Section: Interference Avoidance Schemesmentioning

confidence: 99%

“…One of the major challenges for evolving LTE networks is to increase network capacity [1]. Though dense frequency reuse results in significant system capacity improvement, it also remarkably degrades the performance of the system due to the increase in interference caused by adjacent cells [1,2]. In cellular mobile communication system, mainly two types of interference must be taken into consideration such as intra-cell interference and inter-cell interference.…”

mentioning

confidence: 99%

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