Spatial-based cooperative transmission power assignment for mobile telecommunication systems

application of upfc based on svpwm for power quality improvement

در سالهای اخیر،اختلالات کیفیت توان مهمترین موضوع می باشد که محققان زیادی را برای پیدا کردن راه حلی برای حل آن علاقه مند ساخته است.امروزه کیفیت توان در سیستم قدرت برای مراکز صنعتی،تجاری وکاربردهای بیمارستانی مسئله مهمی می باشد.مشکل ولتاژمثل شرایط افت ولتاژواضافه جریان ناشی از اتصال کوتاه مدار یا وقوع خطا در سیستم بیشتر مورد توجه می باشد. برای مطالعه افت ولتاژ واضافه جریان،محققان زیادی کار کرده ...

Telecommunication Systems Transmission Issues for HDTV

The transmission of digital HDTV signals on satellite channels in the 20-30 GHz band is studied with the aim of designing an Italian domestic satellite, both for the exchange of programs among production centers and for direct broadcasting to end-users. Previous work on the definition of the system architecture and of the payloads is first briefly summarized. The transmission impairments due to...

On Relay Assignment for Cooperative Systems

On Relay Assignment for Cooperative Systems

Transmission Reliability Cost Allocation Based on Contingency Filtering by Economic Indices in Large Power Systems

In this paper, the new approach for the transmission reliability cost allocation (TRCA) problem is proposed. In the conventional TRCA problem, for calculating the contribution of each user (generators & loads or contracts) in the reliability margin of each transmission line, the outage analysis is performed for all system contingencies. It is obvious that this analysis is very time-consuming fo...

Transmission cost allocation based on cooperative game theory