The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
In this paper we study quality-of-service (QoS) provisioning in an ad hoc cognitive radio network with spectrum underlay. Both streaming traffic and non-real-time (nrt) data traffic are considered. An admission control scheme is first proposed based on relatively static information such as path loss and average interference levels in order to guarantee the average throughput of each connection. Outage...
In this paper, we propose an new admission control scheme jointly taking into account call-level QoS based on the dropping probability of handoff call and packet-level QoS based on the outage probability over threshold in IEEE 802.16e where user mobility is allowed and adaptive modulation and coding (AMC) is employed. The proposed admission control scheme is characterized by both a threshold for handoff...
The purpose of this study is to guarantee Quality of Service (QoS) in wireless multi-hop networks by introducing an admission control scheme. In wireless single-hop networks, IEEE 802.11e Enhanced Distributed Channel Access (EDCA) is the standard for QoS control. However, to control QoS, it is necessary to modify the currently used IEEE 802.11 Distributed Coordination Function (DCF)-compliant terminals...
We propose a novel pricing incentive mechanism supporting load balancing and allocating network resource efficiently for QoS-enabled networks. In this paper, we integrate the proposed pricing with QoS routing and present a novel pricing incentive mechanism meeting the QoS requirements of application. This mechanism provides a equitable pricing incentive for applications to according to their service...
The global demand for Internet access services has increased at a notable rate in recent years. The quality of service (QoS) of several real time multimedia applications has become a crucial research topic. One of the challenges to achieve QoS requirements is to determine how to allocate system bandwidth to various applications with the respect of their QoS requirements. In this paper, we proposed...
Admission control is an important mechanism for the provisioning of the user-perceived Quality-of-Service (QoS) in the IEEE 802.11e Wireless Local Area Networks (WLANs). In this paper, we present an efficient admission control scheme based on analytical modelling and non-cooperative game theory where the Access Point (AP) and new users are the players. The decision of admission control is made by...
With the emerging IEEE 802.11n standard, the WLAN is poised as a promising ubiquitous networking technology to support multimedia applications where providing QoS becomes imperative. However, the 802.11 WLAN is not designed to support delay sensitive traffic. This problem is magnified during a handover and typically results in excessive handover latency and packet loss. In addition, a 802.11 WLAN...
Enabling Quality of Service (QoS) for End-to-End (E2E) multimedia content delivery is a challenging issue, especially when this E2E QoS chain needs to span multi-domain environments and heterogeneous network infrastructures. The approach proposed by the End-to-End QoS through Integrated Management of Content, Networks and Terminals (ENTHRONE) project to solve the E2E QoS problem in a scalable manner...
Overload management is of vital importance in wide-area publish/subscribe systems, yet current solutions are best-effort. In this paper, we present an admission control scheme for overload management in large-scale and scalable content-based publish/subscribe systems. We analyze the stumbling block for implementing admission control in publish/subscribe systems, and point out how it differs from admission...
In this paper, we develop a resource allocation and admission control scheme for multimedia services downlink transmission in a multiple parallel time-varying subchannels circumstance such as that in current orthogonal frequency division multiplexing (OFDM) and multi-input multi-output (MIMO) systems. We introduce the outage probability to characterize the influence of both the bursty nature of multimedia...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.