Improving Efficiency in Resource Allocation Of OFDMA Femtocell Networks
محل انتشار: بیست و یکمین کنفرانس مهندسی برق ایران
سال انتشار: 1392
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 816
فایل این مقاله در 5 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICEE21_093
تاریخ نمایه سازی: 27 مرداد 1392
چکیده مقاله:
Interference control is one of the fundamental challenges in resource allocation of femtocell networks that use orthogonal frequency-division multiple access (OFDMA). Inthis paper, a method is proposed that reduces the interference between femtocells. This method is implemented by thefemtocells in a self organizing manner and increases frequency reuse factor. Thus, the network throughput will increase and the fairness between femtocells remains reasonable we also propose a mechanism that can be applied increase the frequency resources assigned to each femtocell. These newfrequencies can be used when femtocells require more frequency resources to carry higher traffic loads. Results of simulations show the improvement of the first method compared to the previous methods. It is also demonstrated that by applying the second mechanism in a high-load condition of the network, a considerable improvement is observed in its throughput. (Between 20-120% improvements
کلیدواژه ها:
femtocell ، resource allocation ، orthogonal frequency-division multiple access (OFDMA) ، frequency reuse ، throughput
نویسندگان
Keyvan. Aghababaiyan
Sharif University of Technology, Tehran, Iran