Topology-aware macro diversity handover technique for IEEE 802.16j multi-hop cellular networks

Sultan, Jamil; Misran, Norbahiah; Ismail, Mahamod; Islam, Mohammad Tariqul

doi:10.1049/iet-com.2010.0092

Cited by 7 publications

(3 citation statements)

References 13 publications

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“…At the first simulation iteration, the direction of each UE is chosen randomly using the uniform distribution in the range (0, 360) degrees. After that, each UE is randomly designated a new direction in the range ( − 45, 45) degrees with respect to its former direction [17]. However, the users in the second tier cells are fixed and the purpose of introducing them is to generate interference to the users of the first tier cells.…”

Section: A Network Modelmentioning

confidence: 99%

Interference Mitigation Using Uplink Power Control in 5G Relay-Based Heterogeneous Networks

Sultan¹,

Jabbar

Al-Thobhani³

et al. 2022

2022 2nd International Conference on Emerging Smart Technologies and Applications (eSmarTA)

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Heterogeneous network (HetNet) is an attractive solution for future cellular networks with high data rate and coverage requirements. In HetNets, small cells such as micro cells, pico cells, femto cells and relay node (RN) are added to the network of macro cells in the same region. A large number of low power RNs produces new cell edges with significant intra-cell and inter-cell interferences. In the uplink (UL) scenarios of timedivision based HetNets with RN, the user equipment (UE) desired signal may be interfered by the transmissions of the co-channel UEs during the first time slot and by the transmissions of the cochannel UEs or RNs during the second time slot. The interference caused by the RNs may significantly degrade the UE signal. UL transmission power control (PC) is essential for mitigating interference and, as a result, enhancing the cell edge and overall system performance. This research proposes a PC algorithm in order to mitigate the UL interference in 5g relay-based HetNets. This research also investigates the UL performance of HetNets when PC is applied at the RNs. Simulation results indicate that UL PC at the RNs greatly reduces average interference and improves average UL signal-to-interference-plus-noise ratio (SINR) and average UL end-to-end throughput compared to the situation in which UL PC is not implemented.

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Section: A Network Modelmentioning

confidence: 99%

Interference Mitigation Using Uplink Power Control in 5G Relay-Based Heterogeneous Networks

Sultan¹,

Jabbar

Al-Thobhani³

et al. 2022

2022 2nd International Conference on Emerging Smart Technologies and Applications (eSmarTA)

View full text Add to dashboard Cite

show abstract

“…The initial direction of each UE is generated randomly by the uniform distribution in the range [0, 360] degrees. The new direction of each UE is selected randomly in the range [ ] degrees related to the preceding direction [24]. Meanwhile, the full-buffer traffic model is considered wherein each UE always has data to send or receive in the buffer [25].…”

Section: A Network Modelmentioning

confidence: 99%

Performance of Hard Handover in 5G Heterogeneous Networks

Sultan

Mohsen

Al-Thobhani

et al. 2021

2021 1st International Conference on Emerging Smart Technologies and Applications (eSmarTA)

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To satisfy the high data demands in future cellular networks, an ultra-densification approach is introduced to shrink the coverage of base station (BS) and improve the frequency reuse. In an ultra-densification approach, small cells such as relay node (RN), micro, pico and femto base stations (BSs) are deployed to the network of macro cells in the same geographic region, forming HetNet. HetNets introduce some notable challenges like inter-cell-interference-coordination (ICIC), mobility management and backhaul provisioning. In this paper, we investigate the performance of the hard handover (HHO) in 5G HetNets. The performance metrics are the total number of handovers and the outage probability. Simulation results show that the average outage probability is decreased in HetNet scenario compared the macro only scenario. However, this improvement comes at the expense of increase number of handovers.

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“…MDHO is the process by which an MS maintains connection with two or more access stations called a diversity set. In [19], a topology-aware macro diversity handover technique (TMDHT) is proposed to improve the conventional MDHO.…”

Section: Introductionmentioning

confidence: 99%

An accelerating handover process scheme for IEEE 802.16j multi-hop relay networks

Chang

2013

J Wireless Com Network

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IEEE 802.16j multi-hop relay network systems provide the mobile wireless communication environment. In such network systems, the handover scanning procedure allows a mobile station (MS) to obtain the information about the handover target base stations (BSs) or relay stations (RSs). The network systems need more time to negotiate the association parameters and to handle scanning the BSs and the RSs when the number of BS and RS increases. It results in more overhead for the handover scanning procedure. In order to accelerate the handover process and reduce the transmission interruption, efficient handover scanning procedure schemes and corresponding algorithms must be developed and designed. A novel relative angle computing algorithm is proposed in this article to accelerate the handover process by taking into account the moving behavior of the MS, and the distances among the MS, the RS, and the BS. The main idea of this algorithm is to reduce the management information overhead and to estimate the potential moving path of the MS in the wireless mobile communication networks. By using the proposed scheme, we eliminate the unnecessary associations and scanning intervals, and reduce the handover scanning procedure efficiently. Simulation result demonstrate the superior performance of our proposed scheme and its ability to strike the appropriate performance in the handover overhead and the message delay for IEEE 802.16j multi-hop relay network systems.

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Topology-aware macro diversity handover technique for IEEE 802.16j multi-hop cellular networks

Cited by 7 publications

References 13 publications

Interference Mitigation Using Uplink Power Control in 5G Relay-Based Heterogeneous Networks

Interference Mitigation Using Uplink Power Control in 5G Relay-Based Heterogeneous Networks

Performance of Hard Handover in 5G Heterogeneous Networks

An accelerating handover process scheme for IEEE 802.16j multi-hop relay networks

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