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UCLA-WINMEC-2003-502-WIFI-QOS

by unknown authors
"... Current IEEE 802.11 standards are not capable of offering Quality-of-Service (QoS) guarantees to WLAN users. This is mainly due to some gaps existing in their MAC protocol. Even the QoS features of the new extension, IEEE 802.11e draft standard, do not suffice. It still needs connection admission co ..."
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Current IEEE 802.11 standards are not capable of offering Quality-of-Service (QoS) guarantees to WLAN users. This is mainly due to some gaps existing in their MAC protocol. Even the QoS features of the new extension, IEEE 802.11e draft standard, do not suffice. It still needs connection admission

Load Control: Congestion Notifications for Real-time Traffic

by Z. R. Turányi, L. Westberg
"... In this paper we present a new resource reservation method for Differerntiated Services domains, which uses simple bit-markings in packet headers. Our Load Control scheme operates by providing congestion notification signals to edge devices in a manner that is suitable for real-time traffic. We inve ..."
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investigate the robustness and other properties of the method and argue that sufficent QoS can be provided with minimal complexity and no per flow processing. Simplicity is demonstrated via example router algorithms.

QoS Routing for Best-Effort Flows

by Pawan Goyal, Gisli Hjalmtyssony - in Proceedings of international Workshop on Network and Operating System Support for Digital Audio and Video (NOSSDAV), (Basking , 1999
"... In packet networks such as Internet, a simple static shortest path routing algorithm is employed. A packet is sent on the shortest path to its destination. If there are multiple shortest paths, the shortest path is chosen arbitrarily. To determine the shortest path each link is assigned a weight and ..."
Abstract - Cited by 2 (0 self) - Add to MetaCart
shortest path routing may suffice in networks that provide a single best effort service in which there is no guarantee about whether and when a packet will be delivered. However, it may not be adequate in networks that provide Quality of Service (QoS) guarantees to applications such as multimedia

QoS Support for Video Transmission in High-speed Interconnects

by A. Martínez, G. Apostolopoulos, F. J. Alfaro, J. L. Sánchez, J. Duato
"... Abstract. Multimedia traffic presents some special requirements that are unattainable with a best-effort service. Current interconnect standards provide mechanisms to overcome the limitations of the best-effort model, but they do not suffice to satisfy the strict requirements of video transmissions. ..."
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Abstract. Multimedia traffic presents some special requirements that are unattainable with a best-effort service. Current interconnect standards provide mechanisms to overcome the limitations of the best-effort model, but they do not suffice to satisfy the strict requirements of video transmissions

QoS Constrained Adaptive Routing Protocol For Mobile Adhoc Networks

by Vinod Kone, Sukumar N
"... Abstract — The ease of deployment and the infrastructure less nature of Mobile Ad hoc Networks (MANETs) make them highly desirable for the present day multi media communications. Traditional routing protocols may not suffice for real time communications which require QoS support from the network. Th ..."
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Abstract — The ease of deployment and the infrastructure less nature of Mobile Ad hoc Networks (MANETs) make them highly desirable for the present day multi media communications. Traditional routing protocols may not suffice for real time communications which require QoS support from the network

An Optimization Based Approach for QoS Routing in High-Bandwidth Networks

by Xiaojun Lin, Ness B. Shroff - In Proceedings of IEEE INFOCOM , 2004
"... Abstract — In this paper, we propose an optimization based approach for Quality of Service routing in high-bandwidth networks. We view a network that employs QoS routing as an entity that distributively optimizes some global utility function. By solving the optimization problem, the network is drive ..."
Abstract - Cited by 3 (0 self) - Add to MetaCart
is driven to an efficient operating point. In earlier work, it has been shown that when the capacity of the network is large, this optimization takes on a simple form, and once the solution to this optimization problem is found, simple proportional QoS routing schemes will suffice. However

QoS Constrained Optimal Sink and Relay Placement in Planned Wireless Sensor Networks

by Abhijit Bhattacharya, Akhila Rao, Naveen K. P, Nishanth P. P, S. V. R. An, Anurag Kumar
"... Abstract — We are given a set of sensors at given locations, a set of potential locations for placing base stations (BSs, or sinks), and another set of potential locations for placing wireless relay nodes. There is a cost for placing a BS and a cost for placing a relay. The problem we consider is to ..."
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count bound suffices to ensure a certain probability of the data being delivered to the BS within a given maximum delay under a light traffic model. We observe that the problem is NP-Hard, and is hard to even approximate within a constant factor. For this problem, we propose a polynomial time

Virtue: Performance Visualization of Parallel and Distributed Applications

by Eric Shaffer, Daniel A , 1999
"... elation with experimental or computational data. Finally, enabling effective remote interaction and visualization necessitates quality-ofservice (QoS) guarantees. Incorporating QoS into these hardware and software systems further increases their complexity. Historically, performance analysis h ..."
Abstract - Cited by 19 (0 self) - Add to MetaCart
elation with experimental or computational data. Finally, enabling effective remote interaction and visualization necessitates quality-ofservice (QoS) guarantees. Incorporating QoS into these hardware and software systems further increases their complexity. Historically, performance analysis

of Vocational Educational

by Dr. Vikash, Kumar Singh, Devendra Singh Kushwaha, Igntu Amarkantak (m. P, Raju Sujane, Manish Taram
"... Abstract: Ad hoc Networks (MANETs) make them highly desirable for the present day multimedia communications. Traditional routing protocols may not suffice for real time communications it depends upon the conditions and our requirements. Though there has been considerable research in this area. MANET ..."
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Abstract: Ad hoc Networks (MANETs) make them highly desirable for the present day multimedia communications. Traditional routing protocols may not suffice for real time communications it depends upon the conditions and our requirements. Though there has been considerable research in this area

An optimization based approach for quality of service routing in high-bandwidth networks

by Xiaojun Lin, Ness B. Shroff - IN IEEE INFOCOM’04, HONG KONG , 2004
"... In this paper, we propose an optimization based approach for Quality of Service routing in high-bandwidth networks. We view a network that employs QoS routing as an entity that distributively optimizes some global utility function. By solving the optimization problem, the network is driven to an eff ..."
Abstract - Cited by 5 (4 self) - Add to MetaCart
to an efficient operating point. In earlier work, it has been shown that when the capacity of the network is large, this optimization takes on a simple form, and once the solution to this optimization problem is found, simple proportional QoS routing schemes will suffice. However, this optimization problem
Results 1 - 10 of 19