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Ultra-reliable and low latency communications is envisioned to enable new services and applications with high reliability, availability and low latency, e.g, factory automation, Tactile Internet. Device-to-device communication is one such mean that allows devices to experience benefits in terms of shorter communication latency. Currently most device-to-device communication in frequency-division duplex...
Cloud services are gaining popularity with times. Service level agreement (SLA) serves a basic understanding between the clients and cloud service providers (CSP). Ensuring secured and adequate service is a basic need of the customers. In this work a set of compliance parameters for cloud service level agreement is identified. A generic rule base is designed to empower the process with an automated...
Although Fog computing specifies a scalable architecture for computation, communication and storage, there is still a demand for better Quality of Service (QoS), especially for agile mobile services. Both industry and academia have been working on novel and efficient mechanisms for QoS provisioning in Fog computing. This paper presents a classification of services according to their QoS requirements...
To satisfy various quality-of-service (QoS) requirements of different services in future fifth generation wireless networks, wireless virtualized network (WVN) architectures have been proposed to concurrently fulfill diversified service demands via network slicing technologies. Considering the dynamic characteristics of wireless channels and user traffic, the resource allocation problem in a WVN with...
This paper addresses the challenging problem of guaranteeing quality-of-service (QoS) requirements associated with parallel running queries in distributed stream processing engines. In such platforms, the real-time processing of streaming data often requires executing a set of user-defined queries over continues data flows. However, previous studies showed that guaranteeing QoS enforcement (such as...
Inter-Cell Interference Coordination (ICIC) techniques are proposed as solutions to alleviate the negative impact of interference on system performance, while enhancing the provided Quality of Service (QoS). Typically, the available bandwidth is divided into inner and edge sub-bands. Users are also classified into interior and edge users. The available resources in each zone are exclusively allocated...
Vehicle-to-vehicle (V2V) communication which supports ubiquitous information exchange and content sharing among vehicles with little or no human intervention becomes a key enabler for intelligent transportation industry. In this paper, we adopt a two-hop relay transmission mode to maximize the total spectrum efficiency of a device-to-device (D2D) based vehicular cooperative network while ensuring...
Recent distributed key-value data stores, such as Aerospike are getting the momentum with ever-increasing need for large-scale real-time data processing. While these data stores can provide significantly improved performance, they still struggle to meet Quality of Service (QoS) during workload surges. In this paper, we address the problem of QoS-aware resource allocation for burst workloads in key-value...
Cloud computing is attracting an increased number of researches in delivering modeling and simulation abilities as a service. Among which, simulation execution as a service (EaaS) is a hot spot. It aims at releasing users from complex running configurations and meanwhile guaranteeing the QoS requirements. Under the motivation, focusing on EaaS for parallel and distributed simulation (PADS) application,...
In vehicle-to-vehicle (V2V) communication underlaying cellular networks, interference between cellular users (CUEs) and V2V users (VUEs) can be severe. To address this issue, many studies focused on designing resource allocation schemes to mitigate uplink interference. Most of them investigated the instantaneous resource allocation. In this paper, however, we consider a highway scenario where CUEs'...
Call admission control (CAC) is one of the vital components in the management of the scarce wireless network resources in mobile broadband networks. Recently, a QoS-aware CAC algorithm with Bandwidth Reservation (BR) and Bandwidth Degradation (BD) (QACAC-BR-BD) was proposed to improve resource utilization and ensure QoS for all classes. However, the algorithm wastes network resources due to a static...
Reliable service provisioning is crucial to the public safety (PS) communications especially when network outage happens. Isolated E-UTRAN operation, introduced in LTE Release 13, is able to host separate core network functions at the base stations (BSs) to provide limited set of services to the users. However, a significant issue remains to be solved is to coordinate among BSs to create an autonomous...
Channel state information (CSI) is essential for efficient power and spectrum allocation policies. In cognitive radio (CR) channels, although perfect CSI of the direct link (between the secondary transmitter and the secondary receiver) is a reasonable assumption at the secondary transmitter (ST), however, perfect knowledge of its interfering links to the primary receivers (PRs) is not. Power allocation...
Long Term Evolution (LTE) is a new bearer service for 4G that greatly improves and simplifies wireless access to packet data transfer. The purpose of the LTE is to efficiently accommodate data users which are busty in nature. A key challenge of incorporating voice traffic into networks with efficiency guarantees lies in the difficulty of releasing the available communication resource when the channels...
A quasi-orthogonal space-time block code (Q-OSTBC) has been proposed to achieve a better multiplexing-diversity tradeoff. With unequal diversity order of symbols, the code can effectively mitigate the error propagation in the successive interference cancellation (SIC) based detector for each user. As well known, non-orthogonal multiple access (NOMA) has been recognized as a promising technique for...
Long Term Evolution (LTE) and LTE-Advanced are traditionally defined for human to human (H2H) communication, they are excellent candidates as a communication technologies in the smart grid environment. The 3GPP standard recently adopted the use of LT E to support low powered sensor devices which they classify as machine type communication (MTC). In this work we evaluated the performance of widely...
This paper addresses the shared resource contention problem associated with the auto-parallelization of running queries in distributed stream processing engines. In such platforms, analyzing a large amount of data often requires to execute user-defined queries over continues raw-inputs in a parallel fashion at each single host. However, previous studies showed that the collocated applications can...
The quality of service is one of challenges posed by the Cloud Computing. This issue plays an important role in making the Cloud services acceptable to customers, denotes the levels of performance, reliability, and availability offered by Cloud services. Literature has reported many implementations for measuring and ensuring QoS in Cloud Computing systems to achieve better results and meet the needs...
Spectrum aggregation (SA) is a technique through which a user performs transmission through multiple channels to maximize capacity. In this paper, adaptive SA with optimal channel selection and power allocation for multiuser multichannel access in spectrum sharing wireless networks is proposed. The main objective is to maximize secondary user (SU) nodes capacity subject to: quality-of-service (QoS)...
The designers of computing systems have interested on the improvements of computing performance that are driven by the demand of consumer, business, and scientific applications. However, further growth of computing performance has started to be limited due to the increasing energy consumption of cloud data centres as a result of carbon dioxide footprints and overwhelming electricity bills. Therefore,...
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