The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
The recent development of high-speed data transmission over wireless cellular networks has enabled the delivery of multimedia broadcasting services to mobile users. These services involve a range of interactions among different system components, including the wireless channel, the network, and mobile devices, making it crucial for the service provider to verify the model, design, and behavior of...
We present a receiver-based rate control scheme in an infrastructure network. A mobile device to receive video stream over wireless plays an important role to decide its rate. As an inter-packet delay (IPD) at the sender decreases, the sending rate increases so that the IPD can be adjusted to control the rate, depending on the receiver buffer occupancy. At every round-trip time, such adjustments will...
Technological advances allow handheld devices to be equipped with faster processors and wireless interfaces, making the performance comparable to laptop Computers. In this paper, we describe real-time video streaming over heterogeneous networks namely Bluetooth, Wi-Fi and GPRS-EDGE. The wireless channel used for communication in different network varies in their Bandwidth, supported Bit rate and Unequal...
In this paper, we investigate the call admission control (CAC) policy of a single cell in multimedia wireless networks with reservation channel scheme (RCS) for different classes of calls. Arrival process of each class of calls is assumed to be a Poisson process, the service time of each call is exponentially distributed. Admitting a call would bring a reward. However, if the reserved channels for...
In this paper, a concept of a network-driven adaptive video streaming is proposed and investigated in a state-of-the art UMTS/HSDPA network in order to alleviate the impact of strongly time-varying quality of wireless links on video quality. We propose making adaptation decisions in a radio access network based on channel-quality information available there. This is done by a so-called Multimedia...
The usage of multimedia applications such as IP-TV and Video On Demand over wireless networks becomes more and more popular. In many cases the bandwidth of the wireless channel is the system bottleneck and thus it is important to increase the ability of wireless networks to provide a scalable service for multiple users simultaneously. The main idea proposed in this paper is based on a dynamic bandwidth...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.