Traffic Offloading Impact on the Performance of Channel-Aware/Qos-Aware Scheduling Algorithms for Video-Applications Over Lte-A Hetnets Using Carrier Aggregation

Sirhan, Najem N.; L.Heileman, Gregory; Lamb, Christopher C.

doi:10.5121/ijcnc.2015.7306

“…It tries to balance the weighted delays of packets and to utilize the knowledge about the channel state efficiently. It choses user j at time t according to the following formula [19] [20]:…”

Section: Modified-largest Weighted Delay First (M-lwdf)mentioning

confidence: 99%

“…The metric that the LWDF uses are based on the system parameter that represents the acceptance probability for user i, in which a packet is dropped due to deadline expiration. This metric is calculated based on the following formula [19]:…”

Section: Modified-largest Weighted Delay First (M-lwdf)mentioning

confidence: 99%

LTE Cellular Networks Packet Scheduling Algorithms in Downlink and Uplink Transmission: A Survey

Sirhan¹,

Martínez‐Ramón²

2022

IJWMN

4

0

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This survey paper provides a detailed explanation of Long Term Evolution (LTE) cellular network’s packet scheduling algorithms in both downlink and uplink directions. It starts by explaining the difference between Orthogonal Frequency Division Multiple Access (OFDMA) that is used in downlink transmission, and Single Carrier – Frequency Division Multiple Access (SC-FDMA) is used in uplink. Then, it explains the difference between the LTE scheduling process in the donwlink and uplink through explaining the interaction between users and the scheduler. Then, it explains the most commonly used downlink and uplink scheduling algorithms through analyzing their formulas, characteristics, most suitable conditions for them to work in, and the main differences among them. This explanation covers the Max Carrier-toInterference (C/I), Round Robin (RR), Proportional Fair (PF), Earliest Deadline First (EDF), Modified EDF-PF, Modified-Largest Weighted Delay First (M-LWDF), Exponential Proportional Fairness (EXPPF), Token Queues Mechanism, Packet Loss Ratio (PLR), Quality Guaranteed (QG), Opportunistic Packet Loss Fair (OPLF), Low Complexity (LC), LC-Delay, PF-Delay, Maximum Throughput (MT), First Maximum Expansion (FME), and Adaptive Resource Allocation Based Packet Scheduling (ARABPS). Lastly, it provides some concluding remarks.

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“…Heterogeneous Networks (HetNets) include a mix of macro-cells, remote radio heads, and low power nodes such as pico-cells, and femto-cells [19].…”

Section: Heterogeneous Lte-a Network (Lte-a Hetnets)mentioning

confidence: 99%

Untitled

2022

IJWMN

0

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The number of LTE (Long-Term Evolution) users and their applications has increased significantly in the last decade, which increased the demand on the mobile network. LTE-Advanced (LTE-A) comes with many features that can support this increasing demand. LTE-A supports Heterogeneous Networks (HetNets) deployment, in which it consists of a mix of macro-cells, remote radio heads, and low power nodes such as Pico-cells, and Femto-cells. Embedding this mix of base-stations in a macro-cellular network allows for achieving significant gains in coverage, throughput and system capacity compared to the use of macrocells only. These base-stations can operate on the same wireless channel as the macro-cellular network, which will provide higher spatial reuse via cell splitting. Also, it allows network operators to support higher data traffic by offloading it to smaller cells, such as Femto-cells. Hence, it enables network operators to provide their growing number of users with the required Quality of Service (QoS) that meets with their service demands. In-order for the network operators to make the best out of the heterogeneous LTE-A network, they need to use QoS-based packet scheduling algorithms that can efficiently manage the spectrum resources in the HetNets deployment. In this paper, we survey Quality of Service (QoS) based packet scheduling algorithms that were proposed in the literature for the use of packet scheduling in Heterogeneous LTE-A Networks. We start by explaining the concepts of QoS in LTE, heterogeneous LTE-A networks, and how traffic is classified within a packet scheduling architecture for heterogeneous LTE-A networks. Then, by summarising the proposed QoS-based packet scheduling algorithms in the literature for Heterogeneous LTE-A Networks, and for Femtocells LTE-A Networks. And finally, we provide some concluding remarks in the last section.

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“…Heterogeneous Networks (HetNets) include a mix of macro-cells, remote radio heads, and low power nodes such as pico-cells, and femto-cells [19].…”

Section: Heterogeneous Lte-a Network (Lte-a Hetnets)mentioning

confidence: 99%

Untitled

2022

IJWMN

0

View full text Add to dashboard Cite

The number of LTE (Long-Term Evolution) users and their applications has increased significantly in the last decade, which increased the demand on the mobile network. LTE-Advanced (LTE-A) comes with many features that can support this increasing demand. LTE-A supports Heterogeneous Networks (HetNets) deployment, in which it consists of a mix of macro-cells, remote radio heads, and low power nodes such as Pico-cells, and Femto-cells. Embedding this mix of base-stations in a macro-cellular network allows for achieving significant gains in coverage, throughput and system capacity compared to the use of macrocells only. These base-stations can operate on the same wireless channel as the macro-cellular network, which will provide higher spatial reuse via cell splitting. Also, it allows network operators to support higher data traffic by offloading it to smaller cells, such as Femto-cells. Hence, it enables network operators to provide their growing number of users with the required Quality of Service (QoS) that meets with their service demands. In-order for the network operators to make the best out of the heterogeneous LTE-A network, they need to use QoS-based packet scheduling algorithms that can efficiently manage the spectrum resources in the HetNets deployment. In this paper, we survey Quality of Service (QoS) based packet scheduling algorithms that were proposed in the literature for the use of packet scheduling in Heterogeneous LTE-A Networks. We start by explaining the concepts of QoS in LTE, heterogeneous LTE-A networks, and how traffic is classified within a packet scheduling architecture for heterogeneous LTE-A networks. Then, by summarising the proposed QoS-based packet scheduling algorithms in the literature for Heterogeneous LTE-A Networks, and for Femtocells LTE-A Networks. And finally, we provide some concluding remarks in the last section.

show abstract

Traffic Offloading Impact on the Performance of Channel-Aware/Qos-Aware Scheduling Algorithms for Video-Applications Over Lte-A Hetnets Using Carrier Aggregation

Abstract: Long Term Evolution (LTE) is defined by the Third Generation Partnership Project (3GPP) standards as KEYWORDS

Cited by 5 publications

References 6 publications

LTE Cellular Networks Packet Scheduling Algorithms in Downlink and Uplink Transmission: A Survey

LTE Cellular Networks Packet Scheduling Algorithms in Downlink and Uplink Transmission: A Survey

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