کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4627069 1631801 2015 21 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Double orbit finite retrial queues with priority customers and service interruptions
ترجمه فارسی عنوان
دو یا چند خط صف مجدد با مشتریان اولویت و وقفه های خدمات
کلمات کلیدی
مدار دوگانه، سرور غیرقابل اعتماد ظرفیت محدود سیاست بازسازی آستانه، تابع هزینه، شبکه رادیویی سلولی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات ریاضیات کاربردی
چکیده انگلیسی

The present study deals with the double orbit finite capacity retrial queues with unreliable server. The system facilitates the arrival of two types of customers known as priority and non priority customers and can hold a maximum of L priority customers and K non-priority customers as per its capacity. The priority customers are served prior to the non-priority customers. Moreover, the server is unreliable which may breakdown while servicing either priority or non-priority customer. The failed server is sent for repair following threshold recovery policy to become as good as earlier. Both transient as well as steady state analysis of the model has been done using by matrix method. Various performance measures including queue length, reliability metrics, long run probabilities, etc. have been obtained using various state probabilities. The application of the model to cellular radio network has been discussed. The cost function has been constructed and optimized using meta heuristic approach. The sensitivity analysis of various performance indices has been performed as an illustration.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Mathematics and Computation - Volume 253, 15 February 2015, Pages 324–344
نویسندگان
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