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Linear matrix precoding, also known as vectoring, is a well-known technique to mitigate multiuser interference in the downlink digital subscriber line (DSL) transmission. While effective in canceling interference, vectoring does incur major communication overhead and computational overhead in terms of the transmission of idle symbols and precoder-data multiplications at each data frame, resulting...
Vectoring is a well-known technique to mitigate multi- user interference in the downlink Digital Subscriber Line (DSL) transmission. While effective in canceling interference, vectoring does incur major computational overhead, resulting in significant energy consumption when the number of lines is large. To facilitate energy efficient transmission, a mechanism called discontinuous operation (DO) has...
The cloud service model is spreading into the telecommunications industry, forcing the telecommunications providers to adjust their production models. The network service provider cloud platform, also called as Telco Cloud, utilizing a cloud based production model, is a solution to respond to the changing market forces. The cloud based production model is a new concept in the context of telecommunication...
A new comprehensive optimization model based on queueing theory is proposed for resource allocation in cloud computing. Response time reliability is considered in our proposed model, which is proved to be essential through our case study. Using our optimization model, the optimal resource allocation of cloud computing strategy is achieved by minimizing the energy with the constraints of average response...
In High Efficiency Video Coding (HEVC), the intra coding performance is significantly improved due to the recursive splitting structure and up to 35 intra prediction modes. However, the computational complexity of intra coding increases largely as well. In this paper, a fast intra coding scheme is proposed based on CPU and GPU cooperation. Firstly, the intra prediction of variable blocks is performed...
Traffic Grooming in optical networks is one if the most important and hot problems in the area of optical network. In the static traffic grooming problem, we introduce the concept of QoS (Quality of Service); in order to minimize the network cost utilization rate and to maximize the QoS degree of the users at the same time, we apply the intelligent computing algorithm -QIA( the quantum-based Immune...
In this paper, symbol error probability (SEP) performance analysis and optimal power allocation (OPA) are considered for uncoded multi-node relay network employing amplify-and-forward (AF) cooperation protocol over independent but not identically distributed Rayleigh fading channels. By taking advantage of the approximate probability density function (PDF) and cumulative distribution function (CDF)...
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