IEEE 802.11 Wireless LAN, popularly known as WiFi, has become the admired source of internet connectivity for most offices well organizations. Due to rapid growth multimedia data and VoIP also provide better quality service (QoS), bandwidth management have important factors in wireless LAN. In Enhanced Distributed Coordination Access (EDCA) mechanism provides QoS with differentiation by setting...

Slightly off-axis digital holographic microscopy (DHM) is the extension of holography imaging technology toward high-throughput modern optical technology. However, it difficult for method based on conventional linear Fourier domain filtering to solve artifacts caused by spectral aliasing problem. In this article, we propose a novel high-accuracy, artifacts-free, single-frame, phase demodulation...

During networking, the bandwidth is equally assigned to individual nodes. But each node can’t utilize the same amount of bandwidth. The requirement of bandwidth also differs from time to time. For proper utilization of bandwidth, the dynamic bandwidth allocation algorithm can be implemented. Efficient dynamic resource provisioning algorithms are necessary to the development and automation of Qu...

Ethernet Passive Optical Network (EPON) has emerged as the solution of choice for the access network. In EPON, the data transfer channel is shared among users in the upstream direction. Therefore, it requires an arbitration method to allow ONUs to share the upstream bandwidth. There are many research papers on bandwidth arbitration schemes. Most of the Dynamic Bandwidth Allocation (DBA) schemes...

Cloud computing offers individuals and organizations the potential for reducing their IT costs. In this paper, we focus on the problem of high bandwidth prices charged by cloud providers for customers’ data uploads and downloads. The cost of such data transfers can become prohibitive when the volume of data transferred is large. The high price of data transfers reflect the cost of raw bandwidth...

This paper presents the design of a multimedia storage system for on-demand playback. The design stresses effective utilization of disk bandwidth with minimal data buffer to minimize overall system costs. The design procedure is most distinctive in the following two aspects: 1. It bases on a tight upper bound of the lumped disk seek time for the Scan disk scheduling algorithm to achieve effecti...