Contribution to analysis of Intercell interference coordination in LTE: A fractional frequency reuse case

Porjazoski, Marko; Popovski, Borislav

doi:10.1109/gmc.2010.5634622

Cited by 18 publications

(8 citation statements)

References 4 publications

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“…In the past few years, several studies have been undertaken on the intercell interference problem in OFDM-based cellular systems [8][9][10]. Most studies focused on the fractional frequency reuse (FFR) technique to mitigate the intercell interference.…”

Section: Introductionmentioning

confidence: 99%

Analytic estimation for uplink capacity reduction due to co-channel interference in LTE networks

Chen

2014

Wireless Netw

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To achieve high system capacity, most fourthgeneration (4G) cellular communication systems, including long term evolution (LTE), tend to adopt aggressive frequency reuse scheme. Although this scheme can increase system capacity, it has a major challenge of suffering severe intercell co-channel interference (CCI), which will reduce cell-edge user throughput and increase outage probability. In this paper, an analytical method is presented for estimating the uplink capacity reduction due to CCI in a cellular LTE network. This method is based on an interference analysis that accounts for random distribution of user locations, propagation shadow fading effect, and userequipment output power limitations. The results indicate that CCI can cause up to 50 % reduction in throughput for cell-edge users. The proposed method is helpful for estimating the CCI impacts when building a 4G network.

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Section: Introductionmentioning

confidence: 99%

Analytic estimation for uplink capacity reduction due to co-channel interference in LTE networks

Chen

2014

Wireless Netw

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“…Static and dynamic interference mitigation and resource allocation techniques have been investigated to reduce Inter Cell Interference (ICI). Bandwidth partitioning methods have been widely studied to avoid ICI such as fractional frequency reuse schemes in [2] and [3] or focusing on partial frequency reuse scheme [4], soft frequency reuse scheme [5] and [6], and dynamic fractional frequency reuse scheme [7]. Although fractional frequency reuse schemes have enhanced cell edge users' SINR, partitioning the available bandwidth still affects the target of LTE system to utilize the entire bandwidth and thus, achieves target peak data rates.…”

Section: Introductionmentioning

confidence: 99%

Novel resource allocation algorithm for improving reuse one scheme performance in LTE networks

Hassan

Sourour

Shaaban

2014

2014 21st International Conference on Telecommunications (ICT)

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The main challenge of LTE networks is to use unitary frequency reuse factor to achieve highest possible data throughput, however it leads to a severe interference affecting active users. Several interference mitigation techniques focus on bandwidth partitioning methods to avoid cell edge interference, although they improve user's average SINR, such techniques reduce maximum achievable data rate. In this work, we introduce a novel resource allocation algorithm utilizing reuse one scheme whereas users are scheduled so that interference between adjacent cells' users served at same time in same RBs is minimized. Furthermore to meet LTE networks' low latency target, a novel algorithm is designed to obtain the optimum allocation of users with better complexity compared to wellknown combinatorial optimization algorithms. Simulation results show that new proposed resource allocation algorithm improves both cell edge users' throughput and total average throughput, and also achieves improved user's average SINR than classic reuse one scheme.

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“…, B 3 (0, 0), B 4 (0, 0)} A numerical method for calculation of interference generated by co-channel cells is proposed and discussed in [13] [14]. The level of co-channel interference in three different scenarios is compared, in particular, cellular system with universal frequency reuse, cellular system with reuse-3 and cellular system with implemented ICIC based on fractional frequency reuse.…”

Section: ) Partial Frequency Reuse (Pfr)mentioning

confidence: 99%

A Survey on Inter-Cell Interference Coordination Techniques in OFDMA-Based Cellular Networks

Hamza

Khalifa

Hamza

et al. 2013

IEEE Commun. Surv. Tutorials

299

197

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Abstract-Orthogonal Frequency Division Multiplexing Access (OFDMA) has been increasingly deployed in various emerging and evolving cellular systems to reduce interference and improve overall system performance. However, in these systems InterCell Interference (ICI) still poses a real challenge that limits the system performance, especially for users located at the cell edge. Inter-cell interference coordination (ICIC) has been investigated as an approach to alleviate the impact of interference and improve performance in OFDMA-based systems. A common ICIC technique is interference avoidance in which the allocation of the various system resources (e.g., time, frequency, and power) to users is controlled to ensure that the ICI remains within acceptable limits. This paper surveys the various ICIC avoidance schemes in the downlink of OFDMA-based cellular networks. In particular, the paper introduces new parameterized classifications and makes use of these classifications to categorize and review various static (frequency reuse-based) and dynamic (cell coordination-based) ICIC schemes.

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Contribution to analysis of Intercell interference coordination in LTE: A fractional frequency reuse case

Cited by 18 publications

References 4 publications

Analytic estimation for uplink capacity reduction due to co-channel interference in LTE networks

Analytic estimation for uplink capacity reduction due to co-channel interference in LTE networks

Novel resource allocation algorithm for improving reuse one scheme performance in LTE networks

A Survey on Inter-Cell Interference Coordination Techniques in OFDMA-Based Cellular Networks

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