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The ongoing enhancement of mobile devices capabilities and advanced technologies has largely contributed to the huge increase of wireless traffic demand. Mobile network operators around the world are struggling to manage this new era of higher generation networks by finding new means and strategies to implement in order to meet the explosion in traffic demand. One of the current and most efficient...
For the downlink device-to-device (D2D) communication underlaying cellular networks, we study the resource allocation policy which jointly optimizes the resource block (RB) assignment and the powers of D2D users and cellular users. Aiming to improve the sum-rate of D2D subsystem and ensure the quality of service (QoS) of the cellular networks, a nominal optimization problem is formulated. Furthermore,...
In this paper, we proposed a utility-based energy-efficient (UEE) resource allocation algorithm in downlink OFDMA heterogeneous networks (HetNets) with mixed traffic. The resource allocation problem is formulated as a mixed integer nonlinear programming (MINLP) problem first. Then an iterative algorithm is proposed to optimize the resource block (RB) scheduling and power allocation alternatively,...
Cognitive femotcell networks can opportunistically access the licensed spectrum to enhance spectrum utilization. However, interference management plays a crucial role to effectively utilize the spectrum. In this paper, we consider the joint resource allocation and power control problem for an uplink transmission for a network consisting of a licensed macrocell and multiple cognitive femtocells. Furthermore,...
In this paper, we investigate the joint resource allocation policy for an orthogonal frequency division multiplexing (OFDM)-based cooperative cognitive radio network with statistical delay quality of service (QoS) guarantees. In the CR network, the spectrum leasing scheme operates in a situation where the primary users (PUs) lease part of its licensed spectrum to the secondary users (SUs) in exchange...
In order to utilize manufacturing resources reasonably, improve production efficiency, lower the production cost, reduce the waste of resources and environment in the process of production, and reduce the difference between process design phase and production scheduling stage, the multi-objective flexible process planning of multi-part in discrete manufacturing is studied in this paper. On the basis...
Problems of new generation networks (NG-) performance analysis is considered. The main Quality of Service indicators for NGnetworks are introduced and their models are constructed. The problem of NGN performance optimization under constraints on set values of QoS is formulated, its model constructed. The algorithms for NG networks performance analysis and optimization are developed. The experimental...
In this paper the approach of the scalability improvement of the hierarchical queue management solutions on telecommunication network routers interfaces is presented. Decision is based on usage of hierarchical goal coordination method, in which was proposed usage of the quadratic optimality criterion. It allows ensuring a more balanced queues load that helped to reduce the number of coordination iterations...
This paper proposes an approach to solve the problem of LTE EPS network parametric synthesis taking into account self-similar properties of multiservice traffic. The problem is solved with the known source data such as network topology, traffic routes, statistical data on the demand for information and communication services. The article proposes the calculation expressions to determine the parameters...
Well-known systemic quality criteria: QoS and QoE directly depend on quality of service tasks fulfillment, however, do not always allow to obtain the solution in full. That is why, many papers addressing research of peer-to-peer networks are very specific [1,230]. Our objective is to attempt to obtain a systemic solution, optimal for a delay minimum criterion upon service completion subject to a number...
Motivated by the challenges of seeking the optimal E-business based maintenance, repair and overhaul (E-MRO) service policy, simultaneously considering bilateral requirements of quality of service (QoS), this paper presents a mathematical model based on variable fuzzy recognition and multi-objective programming. Cloud model is utilized to quantify the information of bilateral requirements as the numerical...
In this paper, we are interested in the Web service classification. We propose a classification method that first uses a stochastic local search (SLS) meta-heuristic for feature selection then call the Support Vector Machine (SVM) to do the classification task. The proposed method that combines SLS and SVM for Web service classification is validated on the QWS Dataset to measure its performance. We...
Security is one of the key concerns of the cloud user community. Most important ask from cloud users is to provide quality of services to manage Security end-to-end. The quality of Services (QoS) for securing cloud images were proposed in the earlier papers [2][3]. However, the key concern that still remains is how to balance performance and security. In this paper, a new and an intelligent model...
In this paper, we investigate the energy-efficiency (EE) of a user equipment (UE) experiencing the worst channel conditions, which is named worst-EE. Due to the limitation on the capacity of the mobile equipments' battery, the worst-EE is suitable for EE fairness optimization in the uplink transmissions of orthogonal frequency division multiple access (OFDMA) networks. In order to maximize the worst-EE,...
In this paper we present an architectural and on-line resource management solution to optimize lifetime reliability of asymmetric multicores while minimizing the system energy consumption, targeting both single nodes (multicores) as well as multiple ones (cluster of multicores). The solution exploits the different characteristics of the computing resources to achieve the desired performance while...
In this paper, power allocation over time-varying multi-user multi-relay amplify-and-forward networks is studied. Specifically, stochastic network sum-rate and max-min rate power allocation problems are formulated. However, solving such stochastic problems relies on perfect global instantaneous channel state information (CSI), and thus entails complex computations and excessive communication overheads...
With the deployment of ultra-dense HetNets, the inter-cell resource allocation requires new network solutions to handle differentiated user demands, while software defined network (SDN) has emerged as a solution to it for imbalanced user needs, as well as enabling efficient resource utilization and QoE. Under such motivations, we employ a QoE assessment model over SDN to analyze the impact factors...
Energy-efficient and quality of experience (QoE) are extremely important for video services. However, most studies just consider one of them. This paper proposes an adaptive energy-efficient and user's quality of experience optimization method to maximize the overall satisfaction of video services. Video content is encoded by the scalable video coding (SVC), which can provide mobile video services...
In this paper, we investigate the achievable rate and the average sum capacity of an underlay cognitive radio (CR) (also known as a secondary) system. We consider single user (SU) and multiple users (MU) secondary systems that deploy spread spectrum as the signaling technique which utilizes the whole available spectrum. The objective is to maximize the achievable rate and the average sum capacity...
Aiming at providing secure provisioning for the primary system, in this paper, we propose an energy harvesting based cooperative communication (EHCC) scheme which will protect the primary confidential message from eavesdropping under the constraint of the secondary quality-of-service (QoS) requirement. To do so, the secondary receiver (SR) firstly transmits jamming signal to protect the primary transmission...
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