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Periodic broadcasting has achieved prominent performance in VoD (Video on Demand) service in wired network. However, the development of wireless VoD service still has gone on hard and slowly in comparison to the rapid growth of mobile video service. In this paper, we propose a scalable video streaming method HQOBA (Heterogeneous Quality-Oriented Bandwidth Allocation) to address the problems in wireless...
This paper introduces an efficient and fair bandwidth allocation strategy called fair service for multiuser multimedia communication over Heterogeneous Networks. Its purpose is to fairly allocated bandwidth to all the users with different video service characteristics and ensures their efficiency at the same time. The proposed fair service bandwidth allocation strategy is formulated as a convex optimization...
The problem of providing an efficient and low-cost video streaming service over wireless access networks is considered in this work. The usage of multicast content delivery combined with popularity-based video caching, enables to provide video-on-demand services over wireless networks. In order to tackle the "last mile" bottleneck for video delivery to the home, we propose a content-aware...
Powerful end systems of distributed multimedia based application in high speed collaborative environment interact for different types of applications which need adaptation of best Quality of Service (QoS) configuration. For this issue we propose a QoS management framework for multimedia application mainly for the domain teleteaching which supports the dynamic choice of configuration as per user requirements...
For wireless VoD (Video on Demand) service, in order to improve spectrum efficiency and provide users good QoS (quality of service), this paper proposes a new bandwidth allocation algorithm based on periodic broadcasting and FGS (fine-granular-scalability) video coding schemes. Different from existing bandwidth allocation algorithms, this paper refinedly takes into account the heterogeneity of users...
WiMAX is one of the most familiar broadband wireless access technologies that support multimedia transmission. IEEE802.16 Medium Access Control (MAC) covers a large area for bandwidth allocation and QoS mechanisms for various types of applications. Nevertheless, the standard lacks a MAC scheduling algorithm that has a multi-dimensional objective of satisfying QoS requirements of the users, maximizing...
This paper targets at service provisioning and bandwidth allocation in single-service overlay multicast network by modeling it as a first-price monopoly auction. We propose a game theoretic pricing mechanism for determining the distribution of a typical multimedia content from an origin server, via the unicast links. By leveraging the rich theory of strategic mechanism design of microeconomics, we...
Deployment of video communication services over mobile ad hoc networks faces numerical obstacles since the networks are characterized by limited and unpredictable bandwidth. Following the tenet of service-orientation, this study proposes a cross-layer design for fine-grained adaptive transmission of real-time video over time-varying channels. Specifically, the sender accurately estimates the current...
Delivering multimedia streaming on Internet remains several limitations, such as bandwidth fluctuations and network conjunction. We present a multimedia gateway design including dynamic bandwidth estimation, SVC extractor and buffer management to resolve the limitations. The dynamic bandwidth estimation not only selects the appropriate SVC sub-stream, but also measures the change of bandwidth and...
Video streaming applications have implementation issues when the transmission rate is much less than the video playback rate. Caching the beginning part of the video in large storage device before playing is a common solution. In this paper, we propose a bandwidth allocation scheme on video content distribution servers. This algorithm is aim to control the server sending rate with efficient bandwidth...
In the future field of communication, broadband multimedia communication satellite will play an important role with its unique advantages. Through analyzing the characteristics of broadband multimedia communication satellite network and the bandwidth allocation, and aiming at the long time delay characteristics of broadband multimedia communication satellite network, this article puts forward the...
In the video on demand system, user waiting time and bandwidth allocation are major challenges for the video broadcasting in mobile ad hoc environment. There are many broadcasting schemes which provide efficient bandwidth allocation and optimal user waiting time. In our work we divide channel into two groups (Regular Channel and Sub Channel) and video data into segments and sub-segments. Broadcasting...
Video-on-Demand (VoD) systems are a category of adhoc multimedia services. To provide a quality oriented services to its users, a VoD system requires usage of various resources like bandwidth and disk space. As number of users increase the resources requirements do proportionally increase. Thus these resources are costly and important from QoS perspective. Hence efficient allocation and utilization...
The congestion control scheme plays a critical role in the multicast communication. Without a proper congestion control mechanism, multicast protocols would cause unfairness while sharing network bandwidth with other flows. We propose a deliberated congestion control scheme to multicast multimedia contents for smart phones retrieving effectively. Our key idea is to detect the single trip time of packet...
This paper proposes a novel Dynamic Priority Time-Threshold-based Queuing bandwidth allocation Scheme for Multimedia services (DPTTQM) in cellular networks. Because future data service will occupy a large portion of all services in next generation mobile networks, there is much significance in improving non-prioritized handoff data call dropping probability of Finite Queuing Adaptive Time-Threshold-based...
An Adaptive Probability based Reservation Strategy (APRS) was proposed for multimedia Low Earth Orbit (LEO) satellite networks. By making reservation based on mobile users' location information and handover probability, APRS controls the extent of priority placed on handover requests and reduces blocking probability for new connections. APRS also adjusts its reservation according to current network...
Peer-to-peer (P2P) technology has become an attractive approach for enabling large-scale video streaming applications, but the factor of users' subjective preferences is usually ignored in such networks. As users have different demands on video quality, we have proposed several schemes, to address the design challenge of providing all users uninterrupted video with their desired qualities in case...
Article proposes the existing problems of the QoS multimedia services in IEEE802.16, analyzes the disadvantage and advantage of current bandwidth scheduling strategy based on IEEE802.16. An improvement strategy of IEEE802.16 PMP network model is proposed based on existing strict priority scheduling strategy. Finally, through the simulation data, we proof the strategy can ensure the QoS performance...
In the next generation cellular communication environment, the effective delivery of multimedia traffic will become an increasingly important issue. In multimedia cellular networks, we should not only minimize handoff dropping probability, but also control new call blocking probability and utilize bandwidth efficiently. In this paper, a novel preemptive time-threshold based bandwidth allocation scheme(PTTS)...
This paper proposes a dynamic Probabilistic Priority Adaptive Time-Threshold-based bandwidth allocation Scheme for Multimedia services (PPATTSM) in cellular networks. Because future data service will occupy a large portion of all services in next generation mobile networks and forced termination of an ongoing call is clearly less desirable than blocking of a new call attempt, there is much significance...
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