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Participatory sensing plays an important role in Internet of Things (IoT) applications to collect large scale data via powerful sensors from ubiquitous devices. However, without a proper incentive mechanism to pay rewards to the users, the application provider (platform) cannot keep the motivation of users due to their costs during the data collection and uploading process. Moreover, conventional...
Power line communication necessary, should match the best ways to control. In this paper, the goal of building built on top of GIS electricity cable communication network resourcemanagement systems, analysis of the overall structure of the system. The system supports C/Sand B/S two access modes. Details of the functional modules of the system structure, keytechnology research system development. Introduction...
As distributed systems get increasingly popular in the use for large-scale computational/storage requirements, more attention has been put on the benefit of the system resource providers. This paper focuses on the online scheduling problem of how to schedule a set of sequentially submitted workflows with deadline constraints to maximize the resource utilization as well as the success rate of meeting...
In practical Cloud/Grid computing systems, DAG scheduling may be faced with challenges arising from severe uncertainty about the underlying platform. For instance, it could be hard to have explicit information about task execution time and/or the availability of resources, both may change dynamically, in difficult to predict ways. In such a setting, the development of various kinds of just-in-time...
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...
In this paper, a novel joint resource allocation including sub-channel scheduling and power control is proposed for downlink multi-cell orthogonal frequency division multiple access (OFDMA) networks. We provide a utility function consisting of energy efficiency and interference pricing, in which power and sub-channel resources have been jointly considered. To reduce the complexity of the joint resource...
This paper presents a game-theoretic approach of power allocation in two-tier OFDMA femtocell networks. A dual-utility based non-cooperative game with pricing is formulated for effectively allocating power on each sub-channel, targeting at maximizing energy efficiency for each macro BS and protecting the SINR for each femto BS for customers' interests, under power constraints in each sub-channel....
Due to large-scale and self-deployed of femtocells overlaid on traditional cellular networks, serious cross- and co-tier interference may arise without good coordination. To address this problem, this paper proposes a distributed power control scheme for the uplink transmission of two-tier OFDMA femtocell networks. Two models are considered: single-channel femtocell networks and multiple-channel femtocell...
In this paper, a MOS-driven energy efficient power allocation scheme (MEEPA) is proposed for video transmission over downlink orthogonal frequency division multiple access (OFDMA) networks. In the proposed framework, system power consumption and MOS for users based on end-to-end video distortion have been jointly optimized. We also define a novel energy efficient utility as the unifying metric based...
This paper investigates the downlink power allocation problem to mitigate the cross- and co-tier interference in the spectrum-sharing two-tier OFDMA femtocell network, which are comprised of macrocells underlaid with femtocells. The problem is formulated as a non-cooperative game with dual-utility. To achieve green radio access, the objective of the utility for each macro BS is to maximize its energy...
Femtocell is an effective technology to improve the system performance. In this paper, we address the problem of sub-channels allocation in OFDMA two-tier femtocell networks. Our objective is to maximize the rate sum of multiple femtocells with consideration of cross-tier interference between macrocell and multiple femtocells. A resource optimization approach based on Ant Colony Optimization Algorithm...
In order to suppress cross-tier interference (CTI) and inter-cell interference (ICI) between adjacent macrocells, this paper proposes an effective resource allocation scheme for the two-tier OFDMA femtocell networks, in which macro BSs adopt the soft frequency reuse (SFR) strategy. Consider that macrocell users (MUEs) are prior to femtocell users (FUEs), firstly the subbands are allocated to MUEs...
Considering the problem of traditional workflow management system, this paper presents a workflow management system based on multi-agent, which applies the coordination and negotiation of multi-agent and the task distribution strategy based on contract net. So, it can not only contribute the communication of nested components, but also settle the conflict between the operations and the executors....
Using wireless sensor network (WSN) to provide environmental data is becoming an increasingly important topic in the research area of building a smart house. As the standard designed for low data rate and low cost wireless personal area network, the IEEE 802.15.4 standard is widely employed in the construction of home sensor networks to assist the smart house application with a real-time environment...
In this paper, we study the subcarrier allocation problem consider both with subcarrier allocation dynamic frequency reuse in the OFDMA-based relay networks. Firstly, we allocate the subcarriers to the relay stations and direct link users in the first hop. Then, we reuse the subcarriers that allocated to the relay stations in the second hop. Thirdly, we allocate the subcarriers to the relay link users...
In cellular network, the deployment of the relay station can bring spatial diversity to increase link capacity and improve communication performance. In this paper, we consider an optimal power allocation scheme for the source and the relay to minimize the bit error rate (BER) at the destination under the power and outage constraint in cooperative relay system. Simulation results show that the BER...
In this paper the game-theoretical is introduced into the multi-user power allocation in cooperative communication networks. We firstly divide the users into two groups that are users of real-time service and non-real-time service. We analyze the optimal power allocation for multi-service transmission; demonstrate the relationship between the two types of services. Then a bilevel programming model...
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:...
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