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The latest new generation passive optical network (NG-PON) standard, known as 10-gigabit-capable passive optical network (XG-PON), enables a very promising architecture that offers 10 Gbps nominal data delivery ratio in the downstream direction. The optical line terminal (OLT) is located within the CO and constitutes the main decision-making tank of the PON. OLT applies a dynamic bandwidth allocation...
Optical orthogonal frequency division multiplexing (O-OFDM) technology, which divides fiber bandwidth into multiple OFDM subcarriers, enables high bandwidth and fine granularity intra data center networks (DCNs) to provide powerful platform for cloud computing. An important issue raised in such O-OFDM based intra-DCNs is how to assign contiguous subcarriers for connection requests with the aim to...
We propose a novel technique for the accommodation of mobile base stations (BSs) and a secondary system with a time division duplex (TDD) frame monitor. By increasing the number of BSs accommodated in a passive optical network (PON), the cost of mobile fronthaul (MFH) can be reduced. To realize even further cost reduction, a secondary system is accommodated in the PON with the MFH while the mobile...
Cloud resource management experienced massive strategy development throughout recent years. A traffic scheduling pattern becomes more significant in Cloud for adapting heterogeneous processing demands. We present priority-based traffic scheduling for downlink resource management aims to sustain Quality of Services (QoS) in Cloud which provide Cost-Effective Best Effort service (CEBE). Our traffic...
Cloud computing is an emerging model in the field of computing. It has been the most studied model in recent years due to the huge amount of energy consumed in the cloud data centers. A great deal of studies focused on investigating the effect of virtualization management on improving energy efficiency of the cloud data centers. However, most studies only considered task resource requirements of processor,...
A virtualized cloud platform may host several cloud services/applications simultaneously. Each hosted cloud service usually runs on a virtual cluster, consisting of several virtual machines (VMs) with a virtual network. In many cases, the virtual clusters share the overall physical network bandwidth. Thus, the quality of the cloud services sharing the same physical networks can be seriously affected...
In this paper, we propose a dynamic bandwidth allocation scheme based on Stackelberg game for a heterogeneous network to simultaneously offer mobile social users with bandwidth via multiple homing access. In specific, network operators in the heterogeneous network compete with each other to determine the price of the bandwidth based on the prediction of mobile social users' demands. Then, mobile social...
In Mobile Social Networks (MSN), users can subscribe to online services and receive service data through base stations in addition to exchanging data directly. When multiple users in the same cell subscribe to the same service, the base station needs to forward the service data to all these users individually, leading to low utilization of the wireless resource. In order to improve the bandwidth efficiency,...
In this paper, we study an extension of atomic routing games for multi-class communication networks with quality of service requirements, which can be formulated as a network management scheme. Atomic routing games are non-cooperative games with multiple selfish players, where each player has to choose a path in a given graph to route his traffic, and then pays the corresponding cost. We develop a...
Through virtualization, a plurality of servers can be simulated on a single physical machine. The sharing of hardware resources of one physical machine by multiple virtual servers greatly improves resource utilization. The key to virtualization is how to handle the allocation and management of hardware resources among competing virtual machines. One type of hardware resource that has not been fully...
In this paper, using an autonomous and distributed approach, we aim at realizing a control mechanism, which is scalable in terms of the network size, for joint optimization of the multi-path routing and bandwidth allocation (MRBA). Multi-path routing is to determine multiple paths from the source node to the sink node such that the traffic demand by the source node can be successfully transferred...
Quality of Experience (QoE) is a wide concept including user perception, behavior and expectations as well as application and network performances. The Internet of the future should be able to increase the QoE offered to the users, also in relationship with their commercial profiles. This paper presents an innovative approach, based on game theory, which, according to the feedback of QoE, is able...
We investigate the coexistence issue between 802.22 and 802.11af networks over the TV White Space (TVWS). The coexistence scheme is vulnerable to selfish attacks. In this paper, the scenario of selfish attack wherein 802.22 subscribers intend to occupy the allocated spectrum selfishly is studied. Consequently, 802.11af users have less opportunity to access the spectrum, which leads to low overall...
Wireless sensor network is a deployment of sensors and the Base station. If base station is not reachable directly for the sensors, an intermediate sink node also deployed as relay node. A sensor senses the environment and forwards the sensed raw data in digital format to the sink hop by hop. Bandwidth allocation is a phenomenon to equally distribute the probability of transmission from sensors to...
In this paper, we investigate the resource allocation problems in electric power communication networks. Considering the fundamental issues of resource allocation, we propose a new resource allocation model. In the proposed model, we first involve the social distance parameter to evaluate the relationship between the difference users in the same service requirement set. Then we propose an optimization...
Aiming at both prolonging the lifetime of the networks and decreasing the end-to-end delay of the networks, we apply GSP (generalized second price) auction game to the problem of joint bandwidth allocation and routing in low-medium-altitude platforms-based PMP/Mesh networks. In the paper, this problem is first modeled as GSP auction game. To decrease the computation overhead of resolving algorithm,...
Network providers are nowadays facing with a big question in allocating network resources due to the constantly increasing of Internet services. While the network resource is not unlimited, users always desire the best quality of experience (QoE) with the huge information exchange. Therefore, finding a justice of network resource allocation based on the user experience is mandatory. In previous studies,...
This paper formulates the bandwidth allocation problem in train-to-ground wireless communication networks in operational process of trains. It is shown that the Nash Bargaining game provides an Asymmetric Nash Bargaining Solution which is fair to bandwidth allocation problems in different services. We proposed a bandwidth allocation model for train-to-ground communication system. It can effectively...
One of the main purpose for heterogeneous networks (HetNet) is to reduce the power consumption for various spectrum allocation schemes. Large-scale user behavior in a two-tier HetNet is considered for the energy-efficient spectrum allocation, which characterizes the macro BSs that guarantee traffic requirements in non-hotspot regions and micro BSs that guarantee traffic requirements in hotspot regions...
We propose a cooperative spectrum sharing strategy in which the secondary system can access to the licensed spectrum of the primary system if it can help the primary system achieve the target rate. Specifically, the secondary system acts as a decode-and-forward relay for the primary system by splitting a fraction of its transmission bandwidth to help forward primary signal. It uses the remaining bandwidth...
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