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CSMA-CA MAC protocol

Comprehensive Cross Layer Analysis Framework for Delay Distribution in WSN

Comprehensive Cross Layer Analysis Framework for Delay Distribution in WSN

... cross-layer protocol (XLP) introduced, which gives us congestion control means overcrowded signals and medium access control MAC in a cross-layer fashion, ultimately for performance ...of MAC ...

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Analysis of Slotted CSMA/CA of IEEE 802 15 4

Analysis of Slotted CSMA/CA of IEEE 802 15 4

... slotted CSMA/CA MAC protocol is evaluated and analyzed for different network configurations to understand the impact of the protocol parameters such as super frame order, beacon order, ...

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Wireless Personal Area Networks   Performance, Interconnection, & Security with IEEE 802 15 4 pdf

Wireless Personal Area Networks Performance, Interconnection, & Security with IEEE 802 15 4 pdf

... contention-based MAC protocols suffer from collisions which waste bandwidth and ...slotted CSMA-CA ac- cess, collisions may occur in several ...slotted CSMA-CA MAC ...

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Minimizing Interference in Multihop Wireless
          Networks in the Presence of Hidden Terminals

Minimizing Interference in Multihop Wireless Networks in the Presence of Hidden Terminals

... practical protocol design, has mostly focused on the CSMA/CA MAC-layer scheduling model ...[18]. CSMA/CA has proven to be an effective distributed scheduling scheme, especially ...

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Modeling the Throughput of 1-persistent CSMA in Underwater Networks

Modeling the Throughput of 1-persistent CSMA in Underwater Networks

... (MAC) protocol based on random access with channel sensing prior to each ...networks, CSMA has been playing a significant role mainly for two reasons: i) it is simple to implement in real hardware ...

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CSMA/CCA: A Modified CSMA/CA Protocol Mitigating the Fairness Problem for IEEE 802 11 DCF

CSMA/CCA: A Modified CSMA/CA Protocol Mitigating the Fairness Problem for IEEE 802 11 DCF

... (MAC) protocol is the main element determining how e ffi ciently the limited commu- nication bandwidth of the underlying wireless channel is shared in a wireless local area network ...the MAC ...

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Modeling performance of CSMA/CA with retransmissions in wireless personal area networks

Modeling performance of CSMA/CA with retransmissions in wireless personal area networks

... The rest of paper is organized as follows. In Sec- tion 2, a brief discussion on IEEE 802.15.4 Media Access Control (MAC) protocol is given. Follow- ing it, Section 3 highlights the modeling process of the ...

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Adaptive parameters adjustment in WBAN to mitigate Wi-Fi interferences

Adaptive parameters adjustment in WBAN to mitigate Wi-Fi interferences

... uses CSMA/CA as MAC protocol could detect collisions and pro- ceed to avoid ...contention-based CSMA/CA protocol is that the two networks sense the medium before ...

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Performance characterization of CSMA/CA adapted multi user MIMO aware MAC in WLANs

Performance characterization of CSMA/CA adapted multi user MIMO aware MAC in WLANs

... the MAC protocol. Either the dominant MAC protocol carrier sense multiple access/collision avoidance (CSMA/CA) needs to be replaced by a novel multi-user MIMO aware MAC ...

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MIMO Network Coding Based PHY/MAC Protocol for Replacement of CSMA/CA in Efficient Two Way Multihop Relay Networks

MIMO Network Coding Based PHY/MAC Protocol for Replacement of CSMA/CA in Efficient Two Way Multihop Relay Networks

... conventional CSMA/CA, slotted CSMA/CA- based protocols and their corresponding extensions with ...PHY/MAC protocol, this paper defines transmission scheme, frame format, resource ...

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An efficient backoff algorithm for IEEE 802 15 4 with MAC techniques in slotted CSMA/CA networks

An efficient backoff algorithm for IEEE 802 15 4 with MAC techniques in slotted CSMA/CA networks

... mill MAC convention is to make framework of sensor system when countless hubs are conveyed, MAC convention must start and set up a correspondence connection between these sensor ...proficient MAC ...

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ATRAS: adaptive MAC protocol for efficient and fair coexistence between radio over fiber based and CSMA/CA based WLANs

ATRAS: adaptive MAC protocol for efficient and fair coexistence between radio over fiber based and CSMA/CA based WLANs

... However, extending the slot time increases the overhead duration in CSMA/CA, which leads to unfairness between an RoF-based WLAN and a legacy WLAN. For example, when the propagation delay is 50 μ s, the ...

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Improved Optimal Slotted CSMA/CA Protocol

Improved Optimal Slotted CSMA/CA Protocol

... Carrier sense multiple access/collision avoidance (CSMA/CA) is a multiple access method implemented in wireless networks for sensing the collisions and avoiding them from occurring. For efficient use of ...

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Investigation on Delay and Power Minimization in IEEE 802 15 4 Protocol using CSMA CA Algorithm

Investigation on Delay and Power Minimization in IEEE 802 15 4 Protocol using CSMA CA Algorithm

... 802.15.4 protocol (ZigBee), measured for Low-Rate Wireless Personal Area Networks (LR-WPANs), and estimate the effect of the inactive portion of a superframe on average delay, and average power ...

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How CSMA/CA With Deferral Affects Performance and Dynamics in Power-Line Communications

How CSMA/CA With Deferral Affects Performance and Dynamics in Power-Line Communications

... dominant MAC protocol for high data-rate PLC, the IEEE 1901, employs a CSMA/CA mechanism similar to the backoff process of ...this protocol assume that the backoff processes of the ...

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wcnc04-udaan.pdf

wcnc04-udaan.pdf

... (D-MAC) protocol is based on the single-channel CSMA/CA (Carrier Sense Multiple Access with Collision Avoidance) ...traditional CSMA/CA to support and exploit di- rectional ...

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Analysis for Saturation Throughput Using Various Mechanisms for IEEE 802 11 WLAN'S

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 ...

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WirArb: A New MAC Protocol for Time CriticalIndustrial Wireless Sensor Network Applications

WirArb: A New MAC Protocol for Time CriticalIndustrial Wireless Sensor Network Applications

... (TDMA) protocol combined with CSMA/CA to schedule the user channel ...real-time MAC protocols are designed to facilitate the expected transmission latency for WSNs, they only manage to meet ...

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Analytical Model of Multihop IEEE 802.15.4 with Unslotted CA/CSMA

Analytical Model of Multihop IEEE 802.15.4 with Unslotted CA/CSMA

... In this work, we propose a new analytical model of multihop to study the behavior of IEEE 802.15.4 with unslotted CA/CSMA using the two dimension Markov chain. The model expresses the probability of busy ...

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Impact of Transient CSMA/CA Access Delays on Active
Bandwidth Measurements

Impact of Transient CSMA/CA Access Delays on Active Bandwidth Measurements

... The simulator uses the NO Ad-Hoc Routing Agent. This agent supports static routing configurations over wireless networks and does not send any routing related packets. This avoids possible interferences with probe or ...

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