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Wireless data traffic, especially video traffic, has been growing at a rapid pace. Innovative network architectures and protocols are needed to improve the efficiency of data delivery. The trend toward integrating advanced information technologies and communications technologies is creating unprecedented opportunities in the design of infrastructure for network-centric services. The rapid growth in...
Content-centric networking (CCN) adopts a receiver-driven, hop-by-hop transport approach that facilitates in-network caching, which in turn leads to multiple sources and multiple paths for transferring content. In such a case, keeping a single round trip time (RTT) estimator for a multi-path flow is insufficient as each path may experience different round trip times. To solve this problem, it has...
Information-centric networking (ICN) has recently attracted research attention and several architecture designs have been proposed. However there is lack of theoretical foundations and quantitative models to evaluate different design choices and compare their respective advantages. In this paper, we take an initial step to build a quantitative framework to enable characterization and comparison of...
Recently, cognitive pilot channel (CPC) has been proposed to assist spectrum awareness and network selection in the heterogeneous network and dynamic spectrum access mechanism. The CPC channel can provide the necessary wireless environment information for the terminals and avoid long time- and energy-consumption for spectrum scanning. In previous researches, two different CPC information delivery...
Emerging technologies such as orthogonal frequency division multiplexing (OFDM) and multiple in multiple out (MIMO) has significantly increased the bandwidth of a wireless channel. A potential application of these technologies is to distribute digital video content over wireless in a home environment. However, video streaming is bandwidth demanding, and the number of interference free wireless channels...
In multi-hop infrastructure wireless mesh networks (WMNs), the association mechanism, by which a client station (STA) affiliates with a mesh access point (MAP), and the routing algorithm, through which MAPs form a multi-hop backhaul for relaying STAs' traffic, determine a two-tier logical topology. Apparently the STA-MAP association mechanism and the backhaul routing impact the available bandwidth...
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