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With the advances in mobile technologies, smart mobile computing devices have become increasingly affordable and powerful, leading to a significant growth in both the number of advanced mobile users and their bandwidth demands. Moreover multimedia streaming to these high-end mobile devices has become widespread. However, multimedia applications are known to be resource-hungry and in order to cope...
Throughput-sensitive multimedia applications, such as on-demand video streaming and non-interactive live streaming require a high sending rate and a certain-level of smoothness. On the other hand, interactive streaming such as on-line conferencing requires a smooth sending rate. TFRC and TFWC support smoothness-sensitive multimedia applications, however, they cannot provide enough sending rate to...
The quick seek of VOD is vital for a high level of user satisfaction. At the same time, many server resources are required to achieve quick seek of VOD. In this research, to improve the efficiency of VOD system achieving quick seek, we propose a load balancer that clusters two types of servers. The first type is the bursty server to transmit initial video data at high throughput. The second type is...
The congestion control mechanism TFRC, which is widely used in current real-time streaming media, is analyzed in this paper. A proposal aiming at the requirement for smoothly change of transmit rate as well as short delay and jitter of real-time streaming media has been made that adjusting the transmit rate of the sender to the change of single trip delay jitter. In the meanwhile, a dynamic adaptive...
IEEE 802.11n is a next-generation wireless WLAN standard which can support a MAC data throughput over 100 Mbps. Frame aggregation mechanism is a key feature at the MAC layer which can improve the efficiency of channel utilization. In this paper, we investigate the performance of video transmission over IEEE 802.11n with frame aggregation mechanism. We derive the relationship between Subframe size...
Many airlines envision the deployment of wireless LAN infrastructure for video streaming to inflight entertainment devices attached to cabin seats. The sheer advantage of wireless LAN infrastructure is that it facilitates flexible configuration of cabin seat layout with less effort and low cost. The emerging IEEE 802.11n technology which has high throughput is an interesting option for such wireless...
Rate control is an important issue for video streaming in cellular networks. This paper describes an equation based rate control for video streaming over cellular networks. In our method, the sending rate is calculated as a function of round trip time (RTT), loss event rate (p), packet size (s) and new control parameters alpha and beta that are able to provide flexible and smooth transmission rate...
This paper describes UTFRC - utility-driven TCP-friendly rate control, a congestion control mechanism more suitable for streaming layered scalable video streams incest-effort networks than TFRC. UTFRC relies on the original TFRC for achieving a stable throughput, but uses the throughput outputted by TFRC only as a guideline and shapes this throughput, on a coarser granularity scale, according to media...
Rate control is an important issue for video streaming in cellular networks. In this paper, we propose an equation based rate control and multiple connections for adaptive video streaming over cellular networks. In our method the sending rate is calculated as a function of round trip time (RTT), loss event rate (p), packet size (s) and new control parameters alpha and beta, that are able to provide...
Fast-growing applications like streaming media make TCP a poor fit. Because the UDP protocol lacks congestion control, equation-based and AIMD-based congestion control schemes have been two promising alternative to TCP for real-time multimedia streaming over the Internet. Past studies have shown that they are able to maintain throughput smoothness and achieve reasonable fairness with competing TCP...
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