Wu Da-peng

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A novel contention aware adjusting mechanism is proposed in this letter. Compared with the Binary Exponential Backoff algorithm defined in standard, our scheme can determine the contention window based on the collision status rapidly and the collision probability can be reduced dramatically; moreover, the dynamical varying timing method can make the node(More)
Account of its advantages in network throughput, load balance, network coding is introduced into the multicast traffic grooming. A core node structure with multicast splitting, traffic grooming, and encoding/decoding functions is studied, and a dynamic-multicast traffic grooming algorithm based on network coding is proposed. Simulation results show that,(More)
Variety of transducers of power grid such as, digital fault recorder(DFR), phasor measurement unit (PMU), power quality monitor records the operating state with different frequency. In order to exchange data, a standard data exchange format, COMTRADE, is employed. Full-wave Fourier algorithm was adopted to calculate the synchronized phasor (synchrophasor)(More)
The available bandwidth in Mobile Ad Hoc network is affected by multiple factors, where channel utilization and collision probability are mainly included. For each facet, the estimating mechanisms are categorized into three classes, furthermore, their advantages and disadvantages are analyzed in depth. Finally, the application and research trend of(More)
One critical issue in Mobile Ad Hoc Network is how to select a reliable path that can last longer since mobility may cause radio links to break frequently. A novel link lifetime estimation mechanism is proposed in this paper. The Newton interpolation polynomial is constructed according to several reference points to describe the received signal strength(More)
According to the storing-carrying-forwarding method in the ubiquitous network, the status on the packet transmitting has the relationship with the spreading degree of messages, and the distributed estimating results can make the assistance on the designing on the routing and cache management mechanism. A novel method to estimate spreading degree of message(More)
For the limited network resource, the performance of Mobile Ad Hoc Network is influenced seriously by the overloaded data flows, a novel distributed end-to-end admission control mechanism based on bandwidth estimation is proposed in this paper. Considering channel utilization, frames collision and backoff procedures in network, the available bandwidth is(More)
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