IEEE 802.11 nodes
An IEEE 802 11 EDCA Model with Support for Analysing Networks with Misbehaving Nodes
... five nodes in the ...the nodes (the bad node) cheats by setting the following parameters: CW MIN = 1 and CW MAX = ...Figure 11 presents the normalised throughput of the nodes with respect to ...
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Throughput analysis for coexisting IEEE 802 15 4 and 802 11 networks under unsaturated traffic
... WPAN nodes are less respon- sive to accessing the channel compared to WLAN ...WPAN nodes can sense the transmissions from each other in the symmetric scenario while the WPAN nodes can sense the ...
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Proposing of Collisions Free and Secure Network for IEEE 802 11 WLAN
... Higher throughput, least delay and Network Security are prime concern for researchers. This paper through simulation and practical approaches takes care of each one and concluded that one can use different slot time for ...
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Modifications in IEEE 802 11 to Prevent Collisions due to Interference in MANETs
... that nodes have to be placed at these positions only; in real life the parallel transmitter-receiver pairs would be separated by a distance larger than the „safe-distance‟ from each other and many other ...
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Dynamic Adaption of DCF and PCF Mode of IEEE 802 11 WLAN
... © 2019, IRJET | Impact Factor value: 7.211 | ISO 9001:2008 Certified Journal | Page 2728 IEEE 802.11 provides another more organized way to grant channel access called PCF. But better management always poses some ...
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Channel Resource Allocation for VoIP Applications in Collaborative IEEE 802 11/802 16 Networks
... In the literature, only a few spectrum sharing methods have been proposed for these two types of networks sharing the unlicensed bands (see [14–16], e.g.). In [14], Berlemann et al. proposed to partially block 802.11 ...
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Performance enhancement of IEEE 802 11 DCF using novel backoff algorithm
... the nodes should randomly access chan- nels using the carrier sense multiple access/collision avoidance ...failed. Nodes will wait for an interframe space (IFS), and then, they will in- voke the binary ...
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Analysis for Saturation Throughput Using Various Mechanisms for IEEE 802 11 WLAN'S
... RTS/CTS (Request to Send / Clear to send) are the optional mechanism used by the wireless networking protocol to reduce frame collisions introduced by the hidden node problem. Originally the protocol fixed the exposed ...
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A Performance Evaluation for Rate Adaptation Algorithms in IEEE 802 11 Wireless Networks
... Open-Loop based Approaches: (i) AARF; (ii) Minstrel, and (iii) Onoe, and from Closed-Loop (iv) Cara, (v) RRAA and (vi) Ideal (it is Closed-Loop approach and similar to RBAR). Algorithms chosen based in compatibility with ...
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Adaptive Distributed Inter Frame Space for IEEE 802 11 MAC Protocol
... all nodes commence their back-off ...priority nodes, they wait for shorter time periods and start to decrease their back-off time earlier than low priority ...
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Security Approaches in IEEE 802 11 MANET—Performance Evaluation of USM and RAS
... The use of MANET technology has increased significantly and security becomes critical problem since a variety of research efforts were spent on vulnerabilities of MANET that concerns the security against DoS attacks that ...
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Rate adaptation in IEEE 802 11 WLAN based on neural network
... In this thesis an adaptive ARF scheme is proposed which would improves the overall throughput performance by dynamically adjusting the thresholds of consecutive successful and failed transmissions according to the ...
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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 ...
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Avoiding collisions between IEEE 802 11 and IEEE 802 15 4 through coexistence aware clear channel assessment
... We now turn to validate our model in practice. The experiments are conducted in the Wireless lab of the IBBT iLab.t technology center [9]. iLab.t has an RF- shielded environment of 4 shielded Qosmotec boxes, in which ...
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Mobility management in IEEE 802 11 WLAN using SDN/NFV technologies
... Recently, the OpenFlow protocol has been considered in the wireless access network to provide the fine-grained packet control, and SDN makes the separation of under- lying physical infrastructure and the network services ...
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A New Load Balancing Procedure in IEEE 802 11 WLANs
... Defining and computing of load is one of the key elements in a load balancing procedure. Today, there is no standardized definition of load. In [3], AP load is estimated by using packet error rate (PER) and number of ...
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Chap5 IEEE 802 pdf
... If the composite signal is periodic, the decomposition gives a series of signals with discrete frequencies; if the composite signal is nonperiodic, the decomposition gives a combination [r] ...
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Chap5 IEEE 802 pdf
... Convergence time is the time it takes routers to share information, calculate best paths, and update their routing tables. A network is not completely operable until the network has[r] ...
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Chap5 IEEE 802 pdf
... The Role of Dynamic Routing Protocols Advantages of dynamic routing include: ▪ Automatically share information about remote networks ▪ Determine the best path to each network and add thi[r] ...
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Chap5 IEEE 802 pdf
... IPv6 does not use the dotted-decimal subnet mask notation Prefix length indicates the network portion of an IPv6 address. using the following format: • IPv6 address/prefix length[r] ...
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