پارس فایل

مرکز دانلود انواع فایل های دانشجویی و دانش آموزی(تحقیق,پاورپوینت,پروژه,مقاله,فایل فلش و ...)

پارس فایل

مرکز دانلود انواع فایل های دانشجویی و دانش آموزی(تحقیق,پاورپوینت,پروژه,مقاله,فایل فلش و ...)

Open-source simulators for Cloud computing: Comparative study and challenging issues

Open-source simulators for Cloud computing: Comparative study and challenging issuesژورنال:Simulation Modelling Practice and Theory سال: November 2015 قیمت اصلی:35.95 AbstractResource scheduling in infrastructure as a service (IaaS) is one of the keys for large-scale Cloud applications. Extensive research on all issues in real environment is extremely difficult because it requires developers to consider network infrastructure and the environment, which may be beyond the control. In addition, t ...

دانلود مقاله A comparative study of packet combining based error recovery schemes for wireless networks انتشار 2014

Int. J. Ad Hoc and Ubiquitous Computing, Vol. 16, No. 3, 2014 Sheng-Shih Wang*, Pei-Chun Lee, Kan-Yen Linand Tzu-Chang Yeh Abstract: To provide reliable communications in wireless environments, two fundamental errorcontrol mechanisms, automatic repeat request (ARQ) and forward error correction (FEC) areproposed. However, the ARQ mechanism may suffer frequent retransmissions and the FECmechanism incurs bandwidth overhead. To reduce the number of retransmissions and supportefficient correction, pr ...

Ecology of Cities and Towns, A Comparative Approach

760 صفحه پی دی اف ContentsList of contributors xiiPreface xix1 Introduction: Scope of the book and need for developinga comparative approach to the ecological study of citiesand towns 1Mark J. McDonnell, Ju¨rgen H. Breuste and Amy K. HahsPart I Opportunities and challenges of conductingcomparative studies 72 Comparative urban ecology: challenges and possibilities 9Jari Niemela¨, D. Johan Kotze and Vesa Yli-Pelkonen3 Frameworks for urban ecosystem studies: gradients, patch dynamicsand the ...