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In multi-tenant shared clouds, applications of different tenants compete for the shared network and thus suffer significant unpredictability of performance. The progress is an essential metric to measure the overall data transfer rate of a tenant and to indicate how fast a tenant can complete data transfer. Most previous work of network allocation or schedule focus on achieving the tradeoff among...
Optical orthogonal frequency division multiplexing (O-OFDM) technology, which divides fiber bandwidth into multiple OFDM subcarriers, enables high bandwidth and fine granularity intra data center networks (DCNs) to provide powerful platform for cloud computing. An important issue raised in such O-OFDM based intra-DCNs is how to assign contiguous subcarriers for connection requests with the aim to...
Minimizing the worst-case playback delay (WPD) in VoD services is both critical and challenging. Given a fixed amount of bandwidth for broadcasting and patching, there is no prior work on determining the minimum WPD, let alone guaranteeing it. In this work, we propose novel schemes that leverage the unique properties of a TDM-based Passive Optical Network (PON) by performing rebroadcasting and patching...
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