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Delay Tolerant Network (DTN) was developed as a proposal for Interplanetary Network (IPN) communication at first. Its primary objective is to support the interconnection and intercommunication in highly stressed network environments including intermittent connectivity, large and/or variable delays, heterogeneous transmission rate, and high bit error rates. DTN researchers have relied heavily on simulation...
This paper is aiming at the bandwidth issue when the transfer node sends video data to the monitor node in video transmission system based on hierarchical Ad Hoc network. A solution called Video Dynamic Recompression is proposed in this paper and is to reduce bandwidth press in the bottleneck of network. The experiment shows that the design function of video dynamic recompression is realized efficiently...
Wireless mesh networks (WMN), with static wireless back-bone and multi-hop communication, as protocols typically employed in WMN are, for the most part, not designed for real-time communications. WMNs experimentation is subjected to stochastic factors such as channel contention, interference, node mobility and access latency add delay and degrade the quality of the stream, pose new design challenges...
Leader election is a very important problem, not only in wired networks, but in mobile ad hoc networks as well. However, due to the node mobility and network performance, cluster leader node may be lost which will affect the communication severely. According to the features of poor mobility of low-level node, in this paper, we present a low-level asynchronous algorithm with the collision avoidance...
Leader election is a very important problem in wired networks and mobile ad hoc networks. In this paper, we propose a leader election algorithm for hierarchy ad hoc network. For high-level ad hoc network, we adopt synchronous leader election algorithm plus a vice president mechanism. For bottom-level ad hoc network, we design an algorithm with the collision avoidance mechanism which can decrease the...
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