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Network Management Systems (NMS) are used to monitor the network and along with Operations Support Systems (OSS) maintain the performance with a focus on guaranteeing sustained QoS to the applications and services. One aspect that is given less importance is the energy consumption of the network elements during the off peak periods. This paper looks at a scenario where the NMS plays an important role...
This paper explores a fast and effective method to detect TCP SYN flooding attack. The Generalized autoregressive conditional heteroskedastic (GARCH) model which is the most commonly used statistical modeling technique for financial time series is proposed as a new technique for Denial of service attack detection. The exponential backoff and retransmission property of TCP during timeouts is exploited...
Mobile payments are a new and alternative payment method. Instead of using traditional methods like cash, cheque, or credit cards, a customer can use a mobile phone to transfer money or to pay for goods and services. Mobile payments have numerous advantages over traditional payment methods. Apart from their apparent flexibility, they enable consumers who do not have easy access to banking facilities...
With growing urbanization, efficient and fair distribution of water to households is critical. A typical water distribution network (WDN) consists of pipes connected by devices such as pumps, valves and tanks. The health of the network is determined by monitoring parameters such as rate of flow, pressure at a point, demand at a point. Drawing parallel with telecommunication networks, we modelled the...
SDH is the dominant transport technology for delivery of voice and private-line bandwidth services in access and backbone networks. Dynamic service provisioning requires the use of on-line algorithms which automatically compute the path to be taken to satisfy the given service request. Shared Risk Link Group (SRLG) has been widely recognized as an important concept in survivable optical networks....
Synchronous digital hierarchy (SDH) is a time division multiplexing technology widely used in transport networks to provide bandwidth services. Dynamic service provisioning refers to the arrival of service requests one-by-one randomly with no prior information on future requests. This requires the use of on-line algorithms which automatically compute the path to be taken to satisfy the given service...
With the size and increasing complexity of telecom networks, there is a need to interconnect management systems at different levels. This requires information flow across many applications in a domain independent way. XML is a widely deployed standard which is being used for integration of network management system(NMS) with other applications. We examine the performance of different transport mechanisms,...
Early distributed shared memory systems used the shared virtual memory approach with fixed-size pages, usually 1-8 KB. As this does not match the variable granularity of sharing of most programs, recently the emphasis has shifted to distributed object-oriented systems. With small object sizes, the overhead of inter-process communication could be large enough to make a distributed program too inefficient...
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