Xianwei Zhou

A optimal power control strategy based on network wisdom in wireless networks

Abstract In this paper, the power control problem in wireless networks is investigated and a dynamic power control scheme, namely wisdom power control, is proposed. Wisdom power control is a process in which network nodes can accurately forecast their optimal transmission powers to get profit maximization, and a trade-off between minimum interference level and a desired transmission quality is obtained from the equilibrium of the game.

QoS-aware multicast routing protocol for triple-layered LEO/HEO/GEO satellite IP networks

In this paper, for the sake of better global coverage, we introduce a novel triple-layered satellite network architecture including Geostationary Earth Orbit (GEO), Highly Elliptical Orbit (HEO), and Low Earth Orbit (LEO) satellite layers, which provides the near-global coverage with 24 hour uninterrupted over the areas varying from 75° S to 90° N. On the basis of this architecture, we propose a QoS-aware multicast routing protocol (QAMRP) for satellite IP networks using the logical location concept to isolate the mobility of LEO and HEO satellites. Furthermore, aiming to minimize the multicast tree cost, we present a least cost tree (LCT) strategy to construct the multicast tree under the condition that the QoS requirements, i.e., delay and available bandwidth bound, are guaranteed. Simulation results demonstrate that the feasibility and performance benefits of the proposed QAMRP in terms of the end-to-end tree delay, the tree cost, and the failure ratio of multicasting connections by comparison with the conventional shortest path tree (SPT) strategy.

Differential Game Model with Coupling Constraint for Routing in Ad Hoc Networks

This paper establishes a differential game model with coupling constraint for routing in ad hoc networks. We propose two definitions: Coupling Constraint Equilibrium Set (CCESet) and Coupling Constraint Equilibrium Solution (CCES), and design an iterative algorithm. The simulation results show the effect on the payoff values for different coupling constraint, and the effect on strategies for different initial value under the same coupling constraint. In the end, we compute the corresponding CCESet and CCES according to the simulation results, which show that CCES is better than the feedback Nash equilibrium strategies without coupling constraint.

The Wisdom Network

This paper describes the concept of wisdom networks. First, we overview some related intelligent networks and propose the wisdom network. Then, the analysis of wisdom node is outlined. And then, the architecture of wisdom network is proposed. Open research issues for the realization of wisdom network are also discussed.

A Low-Cost Delay-Constrained Routing and Wavelength Assignment Algorithm in WDM Networks with Sparse Wavelength Conversions

In this paper, we propose a colored multigraph model for the temporarily available wavelengths. Based on this colored multigraph model, a low-cost delay-constrained routing algorithm is proposed by applying the K-shortest-path strategy. The proposed algorithm has the following advantages: (1) finish routing and wavelength assignment in one step; (2) the total cost of lightpath is low; (3) the delay from the source node to the destination node is bounded. Simulation results show that the proposed algorithm works well and achieves satisfactory blocking probability.

Cross-Layer Rate Control and Dynamic Scheduling in Mobile Ad Hoc Networks

This paper considers an issue joint rate control and dynamic scheduling in mobile ad hoc networks. We propose a cross-layer rate control scheme that jointly computes both the rate allocation and dynamic scheduling. The scheduling in ad hoc networks is a difficult problem and in general NP-hard, or requires centralized implementation. In this paper, we present a dynamic approximation algorithm adapted to mobile ad hoc networks. We study the case with dynamic arrivals and departures of the users. It is for the first time in the literature that the rescheduling is introduced to the network scheduling, and this rescheduling method can adapt to topology environment changed with high

A Hierarchical Name System Based on Hybrid P2P for Data-Centric Networks

Data-centric network plays an important part in the next generation network architecture. And name system is one of basic elements in data-centric network. This paper describes an approach which achieves the name system design criterion. In naming, a combination of three entities is used to achieve security, scalability, and flexibility. In name resolution, a three-layer structure is proposed to achieve precise and semantic resolutions.

Self-optimization of resource allocation in cooperative relay networks

In this paper, a self-optimization model for resource allocation in cooperative relay networks based on game theory is proposed. Every node in the networks can work as a relay node for cooperative communication in the proposed model,. Both the source node and the relay node in the transmission are willing to achieve an optimal power allocation to increase system performance and transmit profits. Simulation results indicate that the self-optimized solutions can be achieved and resource used as relaying for others can be self-configured.

New Trend of Network: Wisdom

With the continuous development of high and new technology, network with wisdom will become the trend of network development. In this paper, we propose a novel architecture for network with wisdom based on the challenges faced existing network, and measure the wisdom of network.

A Shannon's Theory of Wisdom Internet

Internet is so popular that nearly everybody using it every day. Current Internet shows some characteristics of intelligent. For example, it can help people find the proper resources using semantic search. So this paper focuses on the wisdom of Internet. Firstly, the definition and relationship among information, knowledge and wisdom are introduced. Then, the definition of Internet information, Internet knowledge and Internet wisdom is proposed. Internet information follows the Shannons theory on information. Internet knowledge is the set of Internet abilities, such as reliability, security, mobility. Internet wisdom is the overall performance of Internet for a certain event. Lastly, using the Shannons on information entropy, the quantification process is brought out to quantify the three elements that we have defined.