Broadband wireless communications are an important need. WiMAX is a technology that provides wireless connectivity. Even if this standard envisages several mechanisms for quality of service support, best effort traffic class is analyzed here since it still represents an important percentage of the traffic load. This is the reason why this paper provides an analytical study of the contentionbase...

In this paper we study the problem of simulating shared memory on the distributed memory machine (DMM). Our approach uses multiple copies of shared memory cells, distributed among the memory modules of the DMM via universal hashing. The main aim is to design strategies that resolve contention at the memory modules. Extending results and methods from random graphs and very fast randomized algori...

Resource sharing environments enable sharing and aggregation of resources across several resource providers. InterGrid provides an architecture for resource sharing based on virtual machine technology between Grids. Resource providers in InterGrid serve their local requests as well as external requests assigned by InterGrid. However, resource providers would like to ensure that the requirements...

Internet of Things (IoT) is expected to vastly increase the number connected devices. As a result, multitude IoT devices transmit various information through wireless communication technology, such as Wi-Fi cellular mobile low-power wide-area network (LPWAN) technology. However, even latest technology still ready accommodate these large amounts data. Accurately setting contention window (CW) va...