منابع مشابه
An Opportunistic Scheduler for Dense Wlans
The demand for bandwidth by multimedia applications remains unabated. This is particular critical given the growing number of devices with WiFi capability, and the ubiquity of Wireless Local Area Networks (WLANs). These trends have spurred researchers to develop low-cost and backward compatible solutions to increase the capacity of WLANs. One approach is to deploy additional Access Points (APs)...
متن کاملOpportunistic Relay Protocol For IEEE 802.11 WLANs
In IEEE802.11,it is the general case that the further away the stations from the access point (AP), the slower the data rate is to transmit to the AP. With the existing IEEE 802.11 MAC, in the long run all stations end up with the same amount of throughput, no matter if they transmit slow or fast. When one host captures the channel for a long time because its bit rate is low, it penalizes other...
متن کاملDirecting an Opportunistic Scheduler: An Empirical Investigation on Reactive Scenarios
Opportunistic scheduling ooers a uniform perspective on predictive and reactive scheduling as iterative problem solving processes. In the context of reactive scheduling, it constitutes a knowledge-directed alternative to more search intensive iterative approaches. By adopting a scheduling process that opportunistically focuses attention on the most critical subproblem and carefully selecting th...
متن کاملWCFQ: an opportunistic wireless scheduler with statistical fairness bounds
In this paper, we present Wireless Credit-based Fair Queueing (WCFQ), a new scheduler for wireless packet networks with provable statistical shortand long-term fairness guarantees. WCFQ exploits the fact that users contending for the wireless medium will have different “costs” of transmission depending on their current channel condition. For example, in systems with variable coding, a user with...
متن کاملOpportunistic Joint Uplink/Downlink Scheduling in WLANs
Recent advances in the speed of multi-rate wireless local area networks (WLANs) and the proliferation of WLAN devices have made rate adaptive, opportunistic scheduling critical for throughput optimization. As WLAN traffic evolves to be more symmetric due to the emerging new applications such as VoWLAN, collaborative download, and peerto-peer file sharing, opportunistic scheduling at the downlin...
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ژورنال
عنوان ژورنال: International journal of Computer Networks & Communications
سال: 2011
ISSN: 0975-2293
DOI: 10.5121/ijcnc.2011.3315