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In this paper, we develop a biologically-inspired wavelength allocation method that allocates wavelengths to path/packet integrated networks. Our method is based on a biological symbiosis model that explains co-existing and co-working of two types of bacterial strains in biological systems. The results show that the biologically-inspired wavelength allocation method achieves a nearly 40% reduction...
With increase in the heterogeneity and complexity of the Internet, many problems have emerged in the traditional TCP Reno. Against the problem, we have proposed a new bandwidth- based TCP congestion control mechanism, TCP Symbiosis. Unlike the recent works on delay-based and hybrid congestion control, TCP Symbiosis relies on the bandwidth measurement to control the congestion window size. Although...
Recent research on overlay networks has revealed that user-perceived network performance could be improved by an overlay routing mechanism. The effectiveness of overlay routing is mainly a result of the policy mismatch between the overlay routing and the underlay IP routing operated by ISPs. However, this policy mismatch causes a "free-riding" traffic problem, which may become harmful to...
Without any control mechanism, a wireless ad-hoc network is easily congested and the perceived quality of applications considerably deteriorates. Therefore, we need QoS control mechanisms to accommodate real-time multimedia application such as video conferencing, VoIP (voice over IP), and remote monitoring while satisfying application QoS requirements. In this paper, we propose a new routing mechanism...
We propose a transport-layer approach to provide predictable throughput for applications requiring stable bandwidth resource, such as video streaming and VoIP. The proposed mechanism deploys an end-to-end approach: it dynamically sets the increase degree of the congestion window size of a TCP connection according to the measurement results of the available bandwidth of the network path, which is obtained...
Recent research on overlay networks has revealed that user-perceived network performance, such as end-to-end delay performance, could be improved by an overlay routing mechanism. However, these studies only consider end-to-end delay, and there are few works focusing on bandwidth-related information, such as available bandwidth and physical capacity. In the present paper, we use the measurement results...
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