دانلود مقاله ISI انگلیسی شماره 79197
عنوان فارسی مقاله

الگوریتم زمان بندی حریص (GSA) - طراحی و ارزیابی یک راه حل برنامه ریزی OFDMA وایمکس کارآمد و انعطاف پذیر

کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
79197 2010 23 صفحه PDF سفارش دهید محاسبه نشده
خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.
عنوان انگلیسی
Greedy scheduling algorithm (GSA) – Design and evaluation of an efficient and flexible WiMAX OFDMA scheduling solution
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Computer Networks, Volume 54, Issue 10, 1 July 2010, Pages 1584–1606

کلمات کلیدی
وایمکس؛ OFDMA؛ QoS - زمانبند؛ DL-MAP
پیش نمایش مقاله
پیش نمایش مقاله الگوریتم زمان بندی حریص (GSA) - طراحی و ارزیابی یک راه حل برنامه ریزی OFDMA وایمکس کارآمد و انعطاف پذیر

چکیده انگلیسی

WiMAX is one of the most promising technologies to provide broadband wireless access in the near future. In this paper we focus on the study of the combined performance of a WiMAX Base Station MAC downlink scheduler and OFDMA packing algorithm which mainly determine the usage efficiency of the available radio resources. We design and analyze an efficient and flexible solution, greedy scheduling algorithm (GSA), and evaluate its performance as compared to several relevant alternative solutions. Specifically, we analyze performance differences with respect to efficiency, flexibility to provide per subscriber station burst shape preferences, interference mitigation and computational load. Our results show that GSA achieves a performance similar to the one of the competing approaches considered in terms of efficiency, even better in some cases, and significantly outperforms them in flexibility to provide per subscriber station burst shape preferences, interference mitigation and computational load. As a conclusion, the proposed GSA solution is a promising candidate to maximize the utilization of the available WiMAX radio resources at a low computational cost while at the same time being able to fulfill a wide range of requirements based on operators’ preferences and/or network environment specifics.

خرید مقاله
پس از پرداخت، فوراً می توانید مقاله را دانلود فرمایید.