IEEE 802.11 LAN
Enhanced EDCF for VOIP Applications in IEEE 802 11 Based Wireless LAN Networks
... Hybrid coordination function (HCF) is a new coordination function proposed in IEEE 802.11e to enhance both DCF and PCF. HCF uses two methods: the first method is contention-based and it is known as enhanced ...
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Dynamic Adaption of DCF and PCF Mode of IEEE 802 11 WLAN
... wired IEEE 802.3 Ethernet LAN, IEEE 802.4 token bus LAN, IEEE ...ring LAN, fiber distributed data interface (FDDI) metropolitan area network (MAN), or another IEEE ...
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Survey of quality of service parameters and issues in 802 11 wireless LAN
... networks. So, the aid of video, audio, actual- time voice over IP and different multimedia packages over 802.eleven WLAN with QoS necessities is the key for 802.11 WLAN to achieve success in multimedia domestic ...
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Rate adaptation in IEEE 802 11 WLAN based on neural network
... Among the existing statistics-based rate adaptation schemes, the earliest and the most widely used one is ARF (Auto Rate Fallback), which was used in Lucent’s WaveLAN-II product [11]. In the ARF scheme, a discrete ...
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A Performance Evaluation for Rate Adaptation Algorithms in IEEE 802 11 Wireless Networks
... The wireless LAN standards IEEE 802.11 (a/b/g) provides multi-rates capabilities. To achieve high network performance, devices need to adapt their transmission rate dynamically under varying conditions. ...
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Optimal delay analysis for real time traffics over IEEE 802 11 wireless LANs
... In this work, we provide quantitative analyses on the performance of real-time transmissions to guide more efficient communications over wireless LAN. Different from the literature work so far, we investigate the ...
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Security Approaches in IEEE 802 11 MANET—Performance Evaluation of USM and RAS
... received by the wireless LAN MACs of all WLAN nodes in the network and forwarded to the higher layer. As it is indicated on Figure 5, USM mechanism contains high rate of delay according to the proposed method. ...
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Mobility management in IEEE 802 11 WLAN using SDN/NFV technologies
... wireless LAN is proliferating since the increased trend in the wireless network utilization on mobile ...wireless LAN (WLANs or WiFi) always endured from challenges such as the provision of consistent ...
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OFDM synchronizer implementation for an IEEE 802 11(a) compliant modem
... The standard IEEE 802.11a [1] has been devoted devoted to be used in LAN networks, where a burst transmission takes place. At the beginning of each frame a number of preamble symbols are transmitted in ...
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Linking Users' Subjective QoE Evaluation to Signal Strength in an IEEE 802 11b/g Wireless LAN Environment
... 2.2. Measuring QoE. The literature on QoE measurement usually draws a distinction between objective and subjective assessment methods. These aim to evaluate that “perceived QoEs” from a user perspective are not automated ...
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FER Performance in the IEEE 802 11 a/g/n Wireless LAN over Fading Channel
... wireless LAN has emerged as a promising ...applications. IEEE 802.11 a/g/n networks are currently the most popular wireless LAN products on the ...of IEEE 802.11 a/g wireless LAN and ...
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Throughput and Vulnerability Analysis of an IEEE 802 11b Wireless LAN
... WEP was vulnerable to many attacks. Hence a stopgap enhancement to WEP was also introduced in some of the early 802.11i drafts. This enhancement was implemented on some hardware which did not have the capabilities to ...
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Reducing the MAC Latency for IEEE 802 11 Vehicular Internet Access
... First, the time that an MS stays on a channel is determined by the MinChannelTime and MaxChannelTime. In the active scanning mode, after a probe message is sent, the MS will wait for MinChannelTime and if no response is ...
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IEEE 802 11 Wireless LANs: Performance Analysis and Protocol Refinement
... Many research efforts have been conducted on model- ing the performance of DCF since the standardization of IEEE 802.11 MAC. Bianchi in [5] and Wu et al. in [6] use Markov chain models to analyze the throughput of ...
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Proposing of Collisions Free and Secure Network for IEEE 802 11 WLAN
... IEEE 802.11 wireless network contains various problems such as packets delay and drop because of collision due to the heavy traffic. Packets are dropped either by the buffer overflow or by the MAC layer ...
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Modifications in IEEE 802 11 to Prevent Collisions due to Interference in MANETs
... Collisions due to interference signal are frequent in multi-hop wireless networks. Interference signal can be reduced below a threshold level if all parallel transmitter-receiver pairs maintain a minimum of ...
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Analysis for Saturation Throughput Using Various Mechanisms for IEEE 802 11 WLAN'S
... Abstract---The IEEE has standardized the 802.11 protocol for Wireless Local Area Networks. The primary medium access control (MAC) technique of 802.11 is called distributed coordination function (DCF). DCF is a ...
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Performance enhancement of IEEE 802 11 DCF using novel backoff algorithm
... Advances in wireless communication technology have increased the demand for wireless networks. The IEEE 802.11 standard defines the specifications for medium access control (MAC) and the physical layers in a wire- ...
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An IEEE 802 11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes
... Copyright © 2010 Szymon Szott et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the ...
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Improving the IEEE 802 11 power saving mechanism in the presence of hidden terminals
... Figure 11 shows the average media access delays of net- works with different sizes. We find that the proposed scheme reduces the average delay very efficiently. It is because the reserved BCs in the proposed ...
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