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In this paper, we analyze the impact of configuration time on network performance in GMPLS based WDM networks, and propose a modified destination-initiated reservation (M-DIR) approach to reduce the impact.
It needs to consider the establishment and release of IP telephony signaling-SIP or H.323 while analyzing VoIP network performance with OPNET, involving complex protocol configuration such as MGCP. What's more, the simulation efficiency will be greatly reduced in large-scale network. This paper presented an new idea to study the performance of VoIP network, it used the built-in hybrid simulation mechanism...
As a key problem in wavelength switched optical networks (WSON) in which wavelengths are the most important resources, routing and wavelength assignment (RWA) problem has been researched extensively. Due to the advantages of path computation in multi-layer and multi-domain networks, especially in multi-constraints scenarios, path computation element (PCE) has been introduced into WSON, which provides...
Most existing scheduling algorithms for multimedia traffic in code-division multiple-access (CDMA) networks have been designed under the assumption that the physical layer operates with a bounded bit error rate (BER) such that the packet error rate (PER) in the link layer is also bounded. However, there is a tradeoff between the PER and the packet drop rate (PDR) caused by delay violations, i.e.,...
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