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qos
(4365 results)-
Whitepapers
Maximum Utility-Based Resource Allocation Algorithm in the IEEE 802.16 OFDMA System
April 18, 2008 12:00am PDT
Although the Medium Access Control (MAC) protocol and the physical layer have been well-defined in the IEEE 802.16 specifications, resource allocation and management schemes, which are crucial...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Modeling the S-MAC Protocol in Single-Hop Wireless Sensor Networks
April 18, 2008 12:00am PDT
In this paper, the authors present a new analytical model to accurately evaluate the throughput, service delay and the energy consumption of S-MAC protocol. Their model takes into account the...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Power Management of Packet Switches Via Differentiated Delay Targets
April 18, 2008 12:00am PDT
In this paper, the authors explore two novel scheduling algorithms which allow for both differentiated Quality-Of-Service (QOS) and power conservation in input-queued packet switches. At their...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Hk/T : A Novel Server-Side Web Caching Strategy for Multimedia Applications
April 18, 2008 12:00am PDT
Server-side Web caching is an important technique used to reduce the User Perceived Latency (UPL). In large-scale multimedia systems, there are many Web proxies, connected with a multimedia...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Average-Bandwidth Delay Q-Routing Adaptive Algorithm
April 18, 2008 12:00am PDT
In the last decade, due to emerging real-time and multimedia applications, there has been much interest for developing mechanisms to take into account the quality of service required by these...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Proactive Vs. Reactive DVB-RCS Terminal Using ACM Techniques
April 18, 2008 12:00am PDT
The paper studies the performance of the bandwidth request procedure for a proactive Digital Video Broadcasting - Return Channel Satellite (DVBRCS) terminal in comparison with a reactive one. The...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Enabling QoS Multipath Routing Protocol for Wireless Sensor Networks
April 18, 2008 12:00am PDT
Most of the proposed routing protocols for Wireless Sensor Networks (WSN) are concentrating on efficiently using extremely constrained resources, especially the energy. However, one important...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Vertical Handover Criteria and Algorithm in IEEE 802.11 and 802.16 Hybrid Networks
April 18, 2008 12:00am PDT
Next generation wireless communications will likely rely on integrated networks consisting of multiple wireless technologies. Hybrid networks based, for instance, on systems such as WiMAX and WiFi...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Dynamic Power and Sub-Carrier Allocation for OFDMA-Based Wireless Multicast Systems
April 18, 2008 12:00am PDT
Dynamic resource allocation is a key technique that can significantly improve the performance of next generation wireless systems under guaranteed QoS to users. Most of the current resource...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A Multimedia Traffic Scheduler for IEEE 802.16 Point-to-Multipoint Networks
April 18, 2008 12:00am PDT
In this paper, the authors describe and evaluate an advanced traffic scheduler for IEEE 802.16 Point-to-Multipoint networks, referred to as "Colored Frame Registry Tree Scheduler" (CFRTS). The...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Performance Analysis of UGS, RtPS, NrtPS Admission Control in WiMAX Networks
April 18, 2008 12:00am PDT
IEEE 802.16 standard provides a broadband wireless access solution. WiMAX (Worldwide interpretability for microwave access) is the business definition of the 802.16-2004 amendment. In WiMAX,...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A Call Admission Control Algorithm Based on Utility Fairness for Low Earth Orbit Satellite Networks
April 18, 2008 12:00am PDT
A fair and adaptive call admission control algorithm for multimedia Low Earth Orbit (LEO) satellite networks was proposed. Based on current call dropping probability of destination cell, this...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Joint Scheduling and Power Allocation in Multi-Channel Access Point Networks Under QoS Constraints
April 18, 2008 12:00am PDT
The authors consider the joint scheduling and power allocation problem for uplink transmissions in a multichannel access point network, and develop solutions to achieve the maximum system...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Robust End-to-End QoS Maintenance in Non-Contiguous OFDM Based Cognitive Radios
April 18, 2008 12:00am PDT
A recent development in wireless communication is Cognitive Radio (CR) technology, an innovative radio design approach which allows the realization of intelligent allocation of the scarce radio...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
QOAR: Adaptive QoS Scheme in Multi-Rate Wireless LANs
April 18, 2008 12:00am PDT
With the availability of multiple rates in IEEE 802.11a/b/g wireless LANs, it is desirable to improve the network capacity and temporal fairness by sending multiple consecutive frames over high...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
QoS Guaranteed Cross-Layer Multiple Traffic Scheduling in TDM-OFDMA Wireless Network
April 18, 2008 12:00am PDT
In future wireless communication area, a key issue is the resource allocation and scheduling over wireless channel. Various aspects of this issue have been studied. However, few studies are on the...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Dynamic Resource Allocation in High Speed Mobile OFDMA System
April 18, 2008 12:00am PDT
A novel dynamic resource allocation algorithm is proposed for matching the OFDMA system in high speed mobile environment, which suffers from high inter-carrier interference and large dynamic range...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
QoS-Guaranteed Scheduling and Resource Allocation Algorithm for IEEE 802.16 OFDMA System
April 18, 2008 12:00am PDT
For IEEE 802.16 Broadband Wireless Access (BWA) system, the support of QoS is of prime importance for providing various traffic profiles in wireless links. Scheduling and resource allocation play...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
Distributive Delay-Sensitive Cross-Layer Design for OFDMA Systems
April 18, 2008 12:00am PDT
Delay-sensitive cross-layer design has recently attracted increasing interests in providing delay performance guarantee and exploiting multi-user diversity throughput advantage for real-time...
Provided by: Institute of Electrical & Electronic Engineers
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Whitepapers
A Joint Coding and Scheduling Method for Delay Optimal Cognitive Multiple Access
April 18, 2008 12:00am PDT
Cognitive Radio (CR) is an emerging and powerful solution that can significantly improve the utilization of limited radio spectrum resources by allowing secondary users to borrow unused spectrum...
Provided by: Institute of Electrical & Electronic Engineers
