IEEE 802.11 protocol
IEEE 802 11 Wireless LANs: Performance Analysis and Protocol Refinement
... 10, 11] have attempted to improve IEEE ...the IEEE 802.11 protocol. Aad and Castelluccia in [11] suggests three different ways to enhance ...of IEEE 802.11 DCF by simply modifying ...
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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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Modifications in IEEE 802 11 to Prevent Collisions due to Interference in MANETs
... a protocol where a node begins its transmission only if it has a minimum of „safe-distance‟ from the nearest parallel transmitter-receiver pair, and compute the values of „safe-distance‟ and the „significant‟ ...
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A Power Efficient Access Point Operation for Infrastructure Basic Service Set in IEEE 802 11 MAC Protocol
... hybrid protocol named improved PCF operation is proposed, which intelligently chooses the access point- (AP-) assisted DCF (distributed coordinator function) and enhanced PCF (point coordinator function) ...
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Analysis of Energy Efficient IEEE 802 11 MAC Protocol for Wireless Sensor Network
... Energy Consumption in Wireless sensor networks is one of the main challenges for researchers. Many researchers have been done for extending the overall network lifetime by minimizing the power consumption of sensor ...
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CSMA/CCA: A Modified CSMA/CA Protocol Mitigating the Fairness Problem for IEEE 802 11 DCF
... CSMA/CCA protocol allowing for ...CSMA/CA protocol, at the price of a lit- tle worse throughput and average delay ...CSMA/CCA protocol does not intend to solve this kind of unfairness since it may ...
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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 ...
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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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Performance enhancement of IEEE 802 11 DCF using novel backoff algorithm
... The IEEE 802.11 standard pro- vides two mechanisms for the MAC protocol: the point coordination function (PCF) and the distributed coord- ination function ...
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Improving the IEEE 802 11 power saving mechanism in the presence of hidden terminals
... He et al. [15] propose a TDMA (time division multi- ple access)-based MAC protocol for decrement of con- tentions among 802.11 devices. A BI is divided into a number of equal time slices by an AP, and the slices ...
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Analysis for Saturation Throughput Using Various Mechanisms for IEEE 802 11 WLAN'S
... core protocol as the original standard, operates in 5 GHz band, and uses a 52-subcarrier orthogonal frequency division multiplexing (OFDM) with a maximum raw data rate of 54 Mbit/s, which yields realistic net ...
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Security Approaches in IEEE 802 11 MANET—Performance Evaluation of USM and RAS
... Vector Protocol (AODV) is used as a MANET commu- nication ...this protocol when a node wishes to start transmis- sion with another node in the network to which it has no route; AODV protocol provides ...
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A New Load Balancing Procedure in IEEE 802 11 WLANs
... Point Protocol (IAPP) with slight modifications [16,17] and some of them use a dedicated server connected to wired backbone [18,19] or a switch [20] for cooperation of ...
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Throughput analysis for coexisting IEEE 802 15 4 and 802 11 networks under unsaturated traffic
... either IEEE 802.11 or IEEE 802.15.4 MAC protocol individu- ally are based on two-dimensional MC ...the IEEE 802.15.4 MAC protocol using one-dimensional MC has been adopted in [18]; ...
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Rate adaptation in IEEE 802 11 WLAN based on neural network
... the IEEE 802.11 standard does not specify any mechanism and protocol to efficiently utilize the multiple data transmission rates, many rate adaptation schemes have been proposed and some have been used in ...
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Reducing the MAC Latency for IEEE 802 11 Vehicular Internet Access
... and associates itself with an access point (AP), it will oppor- tunistically collaborate with other MSs by relaying the AP’s information to the incoming MSs that are about to enter the AP’s communication area. This will ...
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A distributed message in message aware concurrent transmission protocol in IEEE 802 11 WLANs
... In this article, we proposed an DOMCT protocol for IEEE 802.11 WLANs to improve the system throughput. DOMCT increases the concurrency by opportunistically transmitting a frame immediately after the MAC ...
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Design and Deployment of MQTT Based HeTNeT Using IEEE 802 15 4 and IEEE 802 11 for Internet of Things
... This paper scope was to design and deploy a MQTT based gateway using python using heterogonous wireless network (HetNet). The merit of this is to use a LR-WPAN, which is optimum of battery power low data rate IoT ...
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Connectivity Based Reliable Multicast MAC Protocol for IEEE 802 11 Wireless LANs
... purpose, for each n = 20, 40, 60, 80, and 100, we generated ten IEEE 802.11a wireless LANs, where the APs are located at the centers of the circular service areas of radius 400 m, and n STAs are randomly located ...
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Mobility management in IEEE 802 11 WLAN using SDN/NFV technologies
... 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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