A Decentralized Subchannel Allocation Scheme with Inter-Cell Interference Coordination (ICIC) for Multi-Cell OFDMA Systems

Fraimis, Ioannis G.; Papoutsis, Vasileios D.; Kotsopoulos, Stavros

doi:10.1109/glocom.2010.5683970

Cited by 31 publications

(24 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Fraimis et al [39,40] propose a distributed algorithm based on user selective and collision avoidance approach. The main objective of this algorithm is to maximize the throughput of the CEU with minimal coordination between the neighboring eNBs.…”

Section: A Survey Of Icic Existing Proposalsmentioning

confidence: 99%

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

Hassen

Afif

Tabbane

2016

Wireless Pers Commun

View full text Add to dashboard Cite

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.

show abstract

Section: A Survey Of Icic Existing Proposalsmentioning

confidence: 99%

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

Hassen

Afif

Tabbane

2016

Wireless Pers Commun

View full text Add to dashboard Cite

show abstract

“…Representative examples including [1,5,11,19,32,37] are basically focused on small networks featuring hexagonal geometry. These contributions propose different types of bandwidth and power re-allocations operating at a very short time scale under the assumption of full/perfect knowledge of users' radio channels both in time and frequency, which is unfeasible in real systems.…”

Section: Related Workmentioning

confidence: 99%

Multiobjective optimization of fractional frequency reuse for irregular OFDMA macrocellular deployments

et al. 2015

View full text Add to dashboard Cite

Interference mitigation has been identified as a key challenge for emerging cellular technologies based on Orthogonal Frequency Division Multiple Access (OFDMA), such as LTE. In this context, static Intercell Interference Coordination including Fractional Frequency Reuse (FFR) have been adopted by mobile operators as a good alternative to improve the Quality of Service (QoS) at cell edges. Nevertheless, recent results made evident the need for additional research efforts as default FFR configurations only offer tradeoffs in which spectral efficiency is severely penalized. Moreover, the performance of such baseline designs has been showed to be poor in realistic cellular deployments featuring irregular cell patterns. This paper solves this problematic by introducing a novel multiobjective optimization framework based on evolutionary algorithms that jointly takes into account system capacity, cell edge performance, and energy consumption. With respect to important reference schemes, the proposed algorithm succeeds in finding FFR configurations achieving gains between 10% and 40% in terms of system capacity while simultaneously improving cell edge performance up to 70%.

show abstract

“…Fraimis et al presented in [36] and [37] an algorithm based on exchanging channel occupancy information (used channels) between eNBs to allow each eNB to individually allocate channels to its UEs such that the best value of channel gain is obtained. The objective of this scheme is to maximize the throughput of the cell-edge users in a decentralized manner with only minimal coordination between the neighboring eNBs.…”

Section: ) S = Pmentioning

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

View full text Add to dashboard Cite

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.

show abstract

A Decentralized Subchannel Allocation Scheme with Inter-Cell Interference Coordination (ICIC) for Multi-Cell OFDMA Systems

Cited by 31 publications

References 18 publications

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

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

Multiobjective optimization of fractional frequency reuse for irregular OFDMA macrocellular deployments

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

Contact Info

Product

Resources

About