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Traditionally, Bandwidth-Delay Product can be used to measure the capacity of network “pipe” between two nodes. However, in multi-hop wireless networks, Bandwidth-Delay Product cannot reveal the network condition accurately. In this paper, we define a new metric called Delay-Bandwidth Product (DBP) for wireless networks, which measures the capacity of a one-hop pipe in wireless networks. Wireless...
The long propagation delay and low data rate of acoustic communication make the exchange of control messages time-consuming. Therefore, traditional handshaking-based Medium Access Control (MAC) protocols do not perform well in Underwater Acoustic Sensor Networks (UASN). In this paper, we propose Stentorian MAC for delay-tolerant UASN with heavy data load. Instead of handshaking, Stentorian MAC uses...
In this paper, we present a custom GZIP decoder for DTV application. Not only could GZIP decoder decompress the normal GZIP stream, but it also speed up the decompression for DTV application. The architecture exploits the principles of pipelining to the maximum extent in order to obtain high speed and throughput. A partial decoding approach is proposed to deal with the decompression with the limited...
With the rapid development of the Internet application technology, especially Web2.0 and cloud computing, the data content people produced on the network grew in the geometric progression. And one of the fastest growing and the most likely to challenge the technical architecture things is the large number of small files. Traditional file system processes these mass small files is very toughly, In...
A cognitive OFDM-based relay network is considered in this paper. Communication between any node pair occurs on a spectrum pool of OFDM subcarriers where the subcarriers are not used by primary users. Therefore, the available spectrum for different transmitter-receiver pairs is distinct due to their location difference and so on. To satisfy different traffic demand and improve system performance,...
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