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Fast, on time and large transport capacity, cleaning and other factors make cities gradually increasing demand for urban rail transit, and demand is growing faster than construction speed, so it is necessary to ensure the transport capacity to improve the operations quality of service. At the same time the discretion of the rail transit quality of service affect the choice of rail transit passenger...
In this paper, we consider the problem of interference mitigation in the downlink of multicell networks via base station coordination. In this paper, a simple and efficient scheme for interference management based on potential game is proposed. The main emphasis of this paper is placed on the problem of users' quality of service (QoS) in order to maximize the efficient throughput of system. Meanwhile,...
In this paper, a novel resource allocation with QoS guarantee and fairness (RAQF) scheme is considered for orthogonal frequency division multiple access (OFDMA) two-way relay networks. Multiple source nodes exchange information with the assistance of an amplify-and-forward (AF) relay node (RN) in the presence of an eavesdropper. A joint power allocation, subchannel allocation and subchannel pairing...
As the most potential way to improve the overall performance of the next generation wireless networks, femtocell has attracted much attention from vendors. To femtocell, hybrid access mode is a comprise access mode that operates between close access mode and open access mode. With this kind of access mode, not only the pre-registered users are able to access it, un-registered users could also gain...
In this paper, the convergence of Internet of Things (IoT) and 3GPP LTE-A network is discussed. With the cooperation of enormous smart devices, various kinds of information would be gathered and transmitted to the central control and processing entity, 3GPP LTE-A network provides the ideal access network for the IoT. Meanwhile, there exist several potential issues for the convergence of IoT and 3GPP...
Reduction of the operational effort and cost is a key driver for RAN LTE (Long Term Evolution or E-UTRAN). Self-configuring and self-optimizing mechanisms are introduced as a part of Self Organizing Network (SON) to maximize the integrated performance of LTE/LTE-Advanced by improving the efficient of operation and maintenance. Optimization of handover is one of the optimization aspects of Self Organizing...
The femtocell networks that use Home eNodeB and existing networks as backhaul connectivity can fulfill the upcoming demand of high data rate for wireless communication system as well as can extend the coverage area. It is also of interest to minimize operational effort by introducing self-optimizing mechanisms, and the optimization of the Home eNodeB involved handover is an important goal of LTE-Advanced...
We consider the resource allocation problem in a resource-constrained system for OFDMA-based relay networks. In the resource-constrained system, our allocation strategy is based on economic aim to maximize the user satisfaction which means we can get the more profits. It is impossible to meet all the users' data rate requirement in the resource-constrained system. So we divide the users into two classes:...
The 3GPP is defining the next generation radio access network which introduces advanced self- optimization to reduce the operational efforts and complexity. It is also of interest to minimize operational effort by introducing self-optimizing mechanisms. Optimization of the handover parameters is an important goal of LTE-Advanced. In this paper, a new self- optimizing handover algorithm based on the...
Reduction of operational efforts and complexity are key drivers for RAN Long Term Evolution. It is also of interest to minimise operational effort by introducing self-configuring and self-optimising mechanisms. A self-optimising function shall increase network performance and quality reacting to dynamic processes in the network. To improve the efficiency and performance of the E-UTRAN system, an efficiency...
The focus of this paper is dynamic link allocation algorithms for sharing the limited link resources of the tracking and data relay satellites (TDRS) system among many burst users with varying quality of service (QoS) requirements. The task of scheduling communications between TDRS link and spacecraft is getting more and more critical since an increasing number of spacecraft must communicate with...
This paper proposes the complete QoS (quality of service) architecture for integration of space network with infrastructure networks. The technology, service differentiation mechanisms, network control mechanisms and user-to-networks mechanisms are discussed. The modules required in the network elements and its integration to provide end-to-end QoS in Space networks are presented. The proposed solution...
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