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The cloud-based multimedia applications have been increasingly adopted in recent years. The key challenge for the application providers is how to optimally reconfigure resources to cope with the time-varying workload. In this paper, we study the optimal resource reconfiguration for cloud-based multimedia applications to minimize the average round-trip-time (RTT). Specifically, we propose the optimal...
Resource allocation play an important role in service composition for cloud-based video surveillance platform. In this platform, the utilization of computational resources is managed through accessing various services from Virtual Machine (VM) resources. A single service accessed from VMs running inside such a cloud platform may not cater the application demands of all surveillance users. Services...
3rd party content service expands the variety of contents that IPTV usually distributes and opens the opportunity to create new and attractive content to anyone. However, the hosting service for 3rd party content demands high cost. Therefore, IPTV provider needs an effective strategy of resource management to minimize the cost. Thereby, the cost function is based on the IPTV management of content...
Traditionally the Burst Time Plan (BTP) is always generated periodically in broadband satellite multimedia (BSM) system. Based on the analysis we find that periodical BTP generation (P-BTPG) method can not guarantee the delay performance and channel utilization efficiency simultaneously especially when the capacity requests arrived randomly. The optimized BTP generation (O-BTPG) method is given based...
In the signaling plane of an IMS (IP Multimedia Subsystem) network, the interrogating Call/Session Control Function (I-CSCF) is required to choose the serving CSCF (S-CSCF) for user requests arriving at the proxy CSCFs (P-CSCF). This requires S-CSCF selection in such a way that the response time is minimized. However, in an overloaded situation, the P-CSCF entry points for arriving requests must balance...
Long term evolution (LTE) is the next generation wireless system that supports all IP transmission for multimedia services. The quality of service (QoS) requirements of multimedia services are one of the major challenges that need to be addressed by packet scheduling in the LTE system. This paper proposes a new resource allocation technique for real time (RT) video streaming applications in the downlink...
We study the application of multipath routing to enhance reliability of high quality video in 60 GHz radio indoor networks. We propose a cross-layer approach taking into account the possibility of layered-coding for video stream transportation and the characteristics of 60 GHz radio links based on our earlier studies on the stability of 60 GHz radio links. Further three traffic allocation schemes...
In this paper, we propose a novel end-to-end resource allocation approach for wireless mesh networks with quality-of-service (QoS) assurance. By introducing additional interference tolerability to each multimedia flow, our proposed approach is shown effective in fostering frequency reuse and increasing the number of multimedia flows supported in the system, outperforming its conventional resource...
Ultra-wideband (UWB) is a new wireless technology that transfers data over shorter distances with higher data rates and lower transmission power. WiMedia Alliance's Media Access Control (MAC) protocols for UWB-based wireless personal area networks have become an international standard. The Distributed Reservation Protocol (DRP) is part of this standard that reserves the wireless channel on a slot-by-slot...
802.11 WLAN technology has been widely used recently to transmit heterogeneous data. The transmission of multimedia data has its quality of service (QoS) requirements. Hybrid Coordination Function (HCF) is proposed to provide service differentiation to support real-time transmission by 802.11e working group. HCF is composed of connection-based Enhanced Distributed Coordination Access (EDCA) and contention-free...
The purpose of this paper is to reduce the complexity of scheduling scheme for OFDMA/SDMA system with multimedia traffic. To achieve this purpose, we propose a low-complexity beamforming-based scheduling (LCBS) scheme to solve the multi-dimensional (space, time, and frequency) radio resource allocation problem in OFDMA/SDMA systems. By utilizing a semi-orthogonal user selection (SUS) algorithm, the...
Enhanced Multimedia Broadcast/Multicast Service (EMBMS) is a new function defined in 3GPP specification, which supports download delivery and streaming delivery to group users in LTE mobile networks. In 3GPP Release 8 specification, the EMBMS transmission is classified into single-cell transmission and MBSFN (Multicast Broadcast Single Frequency Network transmission). In MBSFN, the statistical multiplexing...
It was reported that the distribution of multimedia traffic flows among different radio access networks can enable better network utilization than the transmission via single network. Aggregated radio resource management is a process that can efficiently manage the allocation and deallocation of radio resources among different radio access technologies so that mobile users are allowed to enjoy seamless...
High efficiency cross-layer resource management is desired for real-time multimedia streaming application in cognitive radio network. In this paper, a novel multi-user resource management scheme is proposed. Its working principle and information swap mechanism are illustrated in detail. The proposed RDMAL (real time distributed multi-agent learning) algorithm takes advantage of multi-agent learning...
QoS control and resource management in 802.11e WLANs to support real time and multimedia services remains an open problem. All the solutions that only aim to enhance the performance of the enhanced distributed channel access (EDCA) mechanism cannot resolve the performance degradation problem once the channel becomes saturated. Hence, an efficient admission control scheme in EDCA is a key to guarantee...
Orthogonal Frequency Division Multiple Access (OFDMA) based cellular network can support diverse requirement of multimedia traffic. OFDMA method using adaptive modulation and coding technique can increase the system capacity many fold. In order to meet dynamic bandwidth requirement in downlink, an efficient resource allocation method called Two Stage Rate Adaptive (TSRA) algorithm is proposed here...
Drawbacks such as agglutination between call process and call routing, heavy routing overhead, poor scalability and control complexity, exist in current large-scale multimedia communication. To overcome these disadvantages, we proposed a hybrid hierarchical call routing architecture based on agent. In this layered architecture, instructed by the goal of condensation and flat, and improving transmission...
With the unique broadcast nature and ubiquitous coverage of satellite network, the synergy between satellite and terrestrial networks provides new opportunities for delivering wideband services to a wide range of audiences over extensive geographical areas. This paper concerns the optimization techniques pertinent to the packet scheduling to facilitate multimedia content delivery over the satellite...
An important issue for supporting multimedia applications in multiple heterogeneous networks, a typical pervasive computing environment, is how to optimize the rate allocation by intelligently utilizing the available network resources while, at the same time, to meet each application's QoS (Quality of Service) requirement. In this work, we develop and evaluate a rate allocation scheme in terms of...
The traffic in the high-speed wireless multimedia network will be a mixture of voice, video and data messages having a large variety of characteristic and inherent requirement. The present work is a medium access control protocol for time division-code division multiple access system to distribute the available bandwidth among the mixture of different traffic classes depending upon their quality of...
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