IEEE 802.11 (Standard)
Dynamic tuning of the IEEE 802 11 distributed coordination function to derive a theoretical throughput limit
... Advances in wireless communication technology have increased the demand for wireless networks. The IEEE 802.11 standard [1] defines the specifications for medium access control (MAC) and the physical layers in a ...
12
Dynamic Adaption of DCF and PCF Mode of IEEE 802 11 WLAN
... In this work we have focused on three problem areas that lead to performance degradation in IEEE 802.11 WLAN. One major problem with PCF that gets highlighted when small fractions of associated and pollable nodes ...
9
IEEE 802 11 Wireless LANs: Performance Analysis and Protocol Refinement
... The IEEE 802.11 protocol is emerging as a widely used standard and has become the most mature technology for wireless local area networks (WLANs). In this paper, we focus on the tuning of the IEEE 802.11 ...
12
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 ...
9
Rate adaptation in IEEE 802 11 WLAN based on neural network
... The IEEE 802.11 PHY provides multiple data transmission modes. A higher data rate does not necessarily yield a higher throughput. Only when the channel conditions are good, does a higher data rate give a higher ...
35
Channel Resource Allocation for VoIP Applications in Collaborative IEEE 802 11/802 16 Networks
... There have been tremendous advances in wireless networks and mobile devices in recent years. Among the rapidly devel- oping wireless technologies, the IEEE 802.16 technology, often referred as WiMAX, has become ...
11
An IEEE 802 11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes
... The IEEE 802.11 standard [1] for wireless local area networks (WLANs) does not provide users with incentives to coop- erate when accessing the shared radio channel. Therefore, misbehaviour, in the form of selfish ...
13
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- ...
11
Analysis for Saturation Throughput Using Various Mechanisms for IEEE 802 11 WLAN'S
... The 802.11a amendment to the original standard was ratified in 1999 [1] . The 802.11a standard uses the same core protocol as the original standard, operates in 5 GHz band, and uses a 52-subcarrier orthogonal frequency ...
9
Adaptive Distributed Inter Frame Space for IEEE 802 11 MAC Protocol
... Using IFS is another approach to enhance service differentiation in the IEEE 802.11 MAC protocol. It is based on: 1) using the existing IFS values defined by the standard such as SIFS, Point Inter Frame Space ...
11
Mobility management in IEEE 802 11 WLAN using SDN/NFV technologies
... (3) The deployments of APs in a closed region for over- whelming the signal gaps among APs, the purpose is to provide a perfect and continuous connection to the user during mobility. However, the deployment of APs in an ...
14
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 ...
5
Modifications in IEEE 802 11 to Prevent Collisions due to Interference in MANETs
... Let us assume that all nodes in the network transmit with omni-directional antennas at same power level and have transmission range as one unit distance. Let the „safe- distance‟ be expressed as „a‟ times the ...
8
Security Approaches in IEEE 802 11 MANET—Performance Evaluation of USM and RAS
... cific security mechanism on randomly selected nodes on the network. The proposed method is combination of two mechanisms implemented on Data Link Layer of the mobile nodes. Mechanisms implemented on Data link layer are ...
9
Improving the IEEE 802 11 power saving mechanism in the presence of hidden terminals
... Due to its low cost and popularity, the IEEE 802.11 WLAN (wireless local area network) is considered as one of the most promising wireless technologies for IoT (Internet of Things). 802.11 WLAN also provides a PSM ...
10
A New Load Balancing Procedure in IEEE 802 11 WLANs
... In existing classical infrastructure network architecture [1], each STA must associate with an AP within a specific basic service set (BSS). Accordingly, STA must find the AP to communicate with others in an ...
8
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. Rate ...
6
Design and Deployment of MQTT Based HeTNeT Using IEEE 802 15 4 and IEEE 802 11 for Internet of Things
... A MQTT based HetNet using XBEE® as IEEE 802.15.4 motes and a IEEE 802.11n adaptor is used in the Raspberry Pi. The Raspberry Pi 3 is used as a gateway device which works as a bridge between IEEE ...
12
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 order to ...
6
Performance analysis of Ethernet based on IEEE 802 11
... On a similar note, though conventional wisdom states that this question is continuously overcame by the improvement of gigabit switches, we believe that a different solution is necessary[r] ...
5