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Network congestion in the heterogeneous Internet, which is connected by millions of asynchronous systems, poses a serious threat to communication and intermediate nodes that falls under its path. The primary cause of network congestion is that data in networks are overloaded and available resources are inadequate to contain such traffic loads. An enormous amount of proposed approach towards network...
This paper presents a methodology for evaluating the quality of service (QoS) provided by a Universal Mobile Telecommunications System (UMTS) network for data services that use HTTP. Data collected from drive testing were used as the means to evaluate different drive routes of varying quality. The methodology presented in this paper can be easily modified to work with different networks.
In this paper, we present a new analysis of the optimal throughput of a single user for transporting MPEG-4 video over universal mobile telecommunication system (UMTS) network. A wireless channel considers that bit errors associated with link-layer packets are due to the time-varying features of a wideband code-division-multiple access (WCDMA) channel. By this network, the perceived video quality...
High speed downlink packet access (HSDPA) is providing increased user data rate by introducing additional functionalities like link adaptation and coding, fast scheduling and hybrid automatic repeat request (HARQ) at the Node B. To achieve optimal radio resource utilization, HSDPA flow control is applied to control the amount of data sent from the radio network controller (RNC) to the Node B over...
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