A Cross-layer Based Packet Scheduling Scheme for Multimedia Traffic in Satellite LTE Networks

Aiyetoro, Gbolahan; Takawira, Fambirai

doi:10.1109/ntms.2014.6813994

Cited by 9 publications

(8 citation statements)

References 18 publications

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“…An RB is of 180 kHz bandwidth and extends up to 1 ms duration. These include the Channel Aware Queue Aware (CAQA) [17], Cross-layer Based Queue-Aware (CBQA) [18], Robust M-LWDF1 (RM1) and Robust M-LWDF2 (RM2) [19] which were the modified versions of the M-LWDF algorithm. These modified versions of M-LWDF scheduling algorithms are discussed next.…”

Section: Related Workmentioning

confidence: 99%

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A study of packet scheduling algorithms in long term evolution-advanced

Mattoo

Ramli

2020

IJEECS

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<span lang="EN-GB">The allocation of radio resources is one of the most critical functions performed by the Radio Resource Management (RRM) mechanisms in the downlink Long Term Evolution – Advanced (LTE-Advanced). Packet scheduling concerns itself with allocation of these radio resources in an intelligent manner such that system throughput/capacity can be maximized whilst the required multimedia Quality of Service (QoS) is met. Majority of the previous studies of packet scheduling algorithms for LTE-Advanced did not take the effect of channel impairments into account. However, in real world the channel impairments cannot be obliterated completely and have a direct impact on the packet scheduling performance. As such, this work studies the impact of channel impairments on packet scheduling performance in a practical downlink LTE-Advanced. The simulation results obtained demonstrate the efficacy of RM2 scheduling algorithm over other scheduling algorithms in maximizing the system capacity and is more robust on the effect of the cellular channel impairments. </span>

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Section: Related Workmentioning

confidence: 99%

“…A number of packet scheduling algorithms have been developed [11][12][13][14][15][16][17][18][19]. For example, the classic Maximum-Largest Weighted Delay First (M-LWDF) [15] is one of the packet scheduling algorithms that showed an excellent performance in the legacy wireless communication systems.…”

Section: Introductionmentioning

confidence: 99%

A study of packet scheduling algorithms in long term evolution-advanced

Mattoo

Ramli

2020

IJEECS

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“…The Modified Largest Weighted Delay First scheduler was developed to support multiple RT services with different Quality of Service (QoS) requirements [36]. This scheduler has been used in Satellite High Speed Data Packet Access networks [37] and Satellite Long Term Evolution networks [38]. The scheduler uses the waiting time of the Head of Line packet to shape the behavior of the Proportional Fair (PF) scheduling scheme.…”

Section: Mlwdf Schedulermentioning

confidence: 99%

Spectrum Management Schemes for Internet of Remote Things (IoRT) Devices in 5G Networks via GEO Satellite

Aiyetoro

Owolawi

2019

Future Internet

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The rapid growth of not just mobile devices but also Internet of Things (IoT) devices has introduced a new paradigm in mobile networks. This evolution and the continuous need to provide spectrum efficient, high data rates, low latency, and low energy consumption radio access networks have led to the emergence of fifth generation (5G) networks. Due to technical and economical limitations, the satellite air interface is expected to complement the 5G terrestrial air interface in the provision of 5G services including IoT communications. More importantly, it is on this premise that the 5G satellite air interface is expected to provide network access to IoT devices in rural and remote areas termed Internet of Remote Things (IoRT). While this remains an interesting solution, several radio resource management issues exist. One of them, spectrum management, in the 5G satellite as it affects IoRT communications, remains unclear. Hence, the aim of this paper is to investigate and recommend the spectrum management scheme that will be most suitable not only for Human-to-Human communications but also Machine-to-Machine communications in 5G satellite networks. In order to conduct this investigation, a new dynamic scheduling scheme that will be suitable for such a scenario is proposed in this paper. The investigation is conducted through simulations, using throughput, delay, spectral efficiency, and fairness index as the performance metrics.Also, recent studies estimate that approximately 4 billion people still lack access to internet [17]. The economic and technical viabilities of the implementation of terrestrial global coverage remains infeasible not only due to rural and remote areas but also passengers on high-speed trains, speed boats or aircrafts. Hence, the need for the satellite segment to complement the terrestrial network infrastructure in the envisaged 5G communication systems cannot be over emphasized in order to address the limitations of the terrestrial network infrastructure. The satellite components will also be able to support new machine-type communications-based applications and the new 5G system is expected to accommodate diverse RANs to operate together, including satellites [18]. It is also envisaged that the satellite systems can support all the use case scenarios that the terrestrial counterparts will be able to provide [19]. It is indeed well recognized that one of the directions in the evolution of the 5G is towards the concept of Internet of Things (IoT) and it is the concept of smart objects that drives the implementation of this new paradigm [20]. No doubt, the satellite communications systems have the potential to play a crucial role in this 5G framework for different reasons.Firstly, smart objects are often located over a wide geographical area, remote or inaccessible. This scenario of IoT is referred to as the Internet of (Remote) Things (IoRT). In the IoRT scenario, satellite communication systems provide a more cost-effective solution with respect to other terrestrial technologies. Secondly, s...

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“…According to [4], the EXP/PF rule was implemented with the purpose of offering QoS promises over a shared wireless connection. The basic EXP was created to improve the real-time flow's priority prior to the association of non-real-time flows [30,31]. This is where the packet delay at the starting line is rather close to the thresholds delay [10].…”

Section: Exponential/proportional Fairness Rule (Exp/pf Rule)mentioning

confidence: 99%

A performance analysis on packet scheduling schemes based on an exponential rule for real-time traffic in LTE

Ang

Wee

Pang

et al. 2015

J Wireless Com Network

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Long-Term Evolution (LTE) was implemented to fulfill and satisfy users' needs as well as their demands for an improvised, fast and efficient Quality of service (QoS). A minimal aggregate of waiting time in return would give users a better Quality of experience (QoE). Real-time service packet scheduling is an important process in allocating resources to users. An efficient packet scheduling scheme will be able to cater fairly and efficiently to its users in the LTE network. Hence, studies are performed focusing on real-time traffic which includes video as well as Voice over Internet Protocol (VoIP) transmissions. In this work, the existing exponential rule (EXP rule) is utilized to benchmark our proposed packet scheduling techniques so that we are able to further evaluate the scheduling performance. In response to the increasing likelihood of losing packets in the EXP rule's algorithm and maximizing the throughput rate, several schemes have been experimented with. The proposed schemes include 1) simplified EXP rule (sEXP Rule), 2) modified EXP rule (mEXP Rule), 3) EXP rule with maximum throughput (MT) (EXP_MT Rule), and 4) enhanced EXP rule with MT (E2M). By adding MT as a weight to the EXP rule, the throughput is maximized, thus providing higher throughput rates for real-time and non-real-time traffic. The simulation results show that the sEXP rule has a better performance in throughput, packet loss rate (PLR), and spectral efficiency for video traffic. Aside from this, our proposed E2M rule performs better than the benchmark EXP rule and outperforms the other proposed schemes, as well. It is observed that the E2M rule has better QoS support for real-time transmission in terms of delay, packet loss, throughput and spectral efficiency, within the LTE network. Hence, our proposed E2M rule is an enhancement of the benchmark EXP rule, which is commonly used in LTE packet scheduling.

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A Cross-layer Based Packet Scheduling Scheme for Multimedia Traffic in Satellite LTE Networks

Cited by 9 publications

References 18 publications

A study of packet scheduling algorithms in long term evolution-advanced

A study of packet scheduling algorithms in long term evolution-advanced

Spectrum Management Schemes for Internet of Remote Things (IoRT) Devices in 5G Networks via GEO Satellite

A performance analysis on packet scheduling schemes based on an exponential rule for real-time traffic in LTE

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