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In this paper we propose a new random channel access protocol to reduce the channel access delay in a multichannel orthogonal frequency division multiple access (OFDMA) wireless networks. In particular, we propose a two dimensional random walk through time and frequency domain slots simultaneously to reduce the random channel access delay for the IEEE 802.16e-2005 based WiMAX media access control...
High-bandwidth QoS sensitive services such as large scale video surveillance generally depend on provisioned capacity delivered by circuit-switched technology such as SONET/SDH. Yet development in layer 2 protocol sets and manageability extensions to Ethernet standards propose layer 2 packet switching technology as a viable, cheaper alternative to SONET/SDH. Layer 2 switched networks traditionally...
The update process in an IP router after a failure is detected, is a complex process involving more than just recalculating shortest paths. When statistics related to forwarded traffic are not taken into account, which is generally the case, we show that packet loss can be significantly higher than is strictly needed. In this paper we present a combined control and traffic-driven routing table update...
The PCE architecture is designed to be a cost-effective solution for computing optimal paths in nextgeneration core networks. In this paper we propose a method for disseminating optical monitoring information to the PCE.
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