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A simple statistical approach based on exponentially weighted moving average (EWMA) charts for monitoring quality of service (QoS) violations is presented in this paper. The monitoring is performed by checking the actual services performance against the QoS stated in Service Level Agreement (SLA). Our approach monitors their QoS attributes and reveals early forecasts of violations in customers' demands...
This study attempts to upgrade the service efficiencies of cloud management by proposing different quality approaches. We design two detecting mechanisms to search the early violation signal by a different quality level of confidence. This research attempts to prevent assignable variables existed in violation situations. We proposed and verified the Moving Range Chart and EWMA Chart by utilizing CLOUDSIM...
Service Level Agreement (SLA) in cloud service provides quality and responsibility for both Data enter providers and customers. If a customer's required task is processed delayed then penalty of SLA violation are generated due to this shortage of resource allocation. The virtual machines (VMs) in lower utilization host or over utilization host will be migrated to the suitable hosts in an attempt to...
A cross-layer design is developed for error-sensitive and latency-tolerated traffic over LTE system. Two adaptive techniques, automatic repeat request (ARQ) protocol at radio link control (RLC) sublayer and medium access control (MAC) sublayer and adaptive modulation and coding (AMC) scheme at physical (PHY) layer are combined to improve the average spectral efficiency of the system. The segmentation...
In this paper, integrated fuzzy comprehensive appraisal approach is described and applied to government website evaluation. A government website evaluation system is established, consisting of 5 primary indexes (website content, e-government affairs, Quality of Service, website design and network characteristic) and 24 secondary indexes. Results show that it is important for websites to provide timely...
The calling of users is very uneven and the channel collision detection ability is quite weak in communication system in near space (CSNS). To ensure quality of service (QoS), a novel load measurement access control (LMAC) protocol is proposed. Combined with Markov M/M/n queue model, integrated theoretical analytical model is established for CSNS. The effect which the waiting probability of calling...
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