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Dynamic Framed Slotted ALOHA

Probabilistic Dynamic Framed Slotted ALOHA for RFID Tag Identification

Probabilistic Dynamic Framed Slotted ALOHA for RFID Tag Identification

... In this paper, we study the tag identification problem in a situation that the num- ber of tags might be much greater than the maximal frame size. For a given way of estimating the tag cardinality, the optimal system e ...

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An effective frame breaking policy for dynamic framed slotted aloha in RFID

An effective frame breaking policy for dynamic framed slotted aloha in RFID

... of Aloha-based algorithms, we pro- pose an effective frame breaking policy named detected sector based dynamic framed slotted Aloha (ds-DFSA) for the EPC C1 Gen2 standard ...other ...

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Bayesian estimation in dynamic framed slotted ALOHA algorithm for RFID system

Bayesian estimation in dynamic framed slotted ALOHA algorithm for RFID system

... The maximum throughput of the RFID system can be reached when the number of slots in a frame equals the number of unidentified tags [15]. Cha improved the Schoute algorithm and applied it in RFID systems for the first ...

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New tag estimator for the dynamic framed slotted Aloha anti-collision algorithm in RFID systems

New tag estimator for the dynamic framed slotted Aloha anti-collision algorithm in RFID systems

... 1 [email protected] * ECE Dept, Faculty of Eng., International Islamic University Malaysia 50728 Kuala Lumpur , Malaysia Abstract— Radio frequency identification (RFID) technology is a wireless identification ...

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Maximum a posteriori (MAP) based tag estimation method for dynamic framed slotted ALOHA (DFSA) in RFID systems

Maximum a posteriori (MAP) based tag estimation method for dynamic framed slotted ALOHA (DFSA) in RFID systems

... It is obvious from the above equation that the through- put depends on the appropriate choice of frame size L, given the number of tags N in the interrogation range. Figure 1 shows the well-known upper bound of the ...

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Dynamic Framed-Slot ALOHA Anti-Collision using Precise Tag Estimation Scheme

Dynamic Framed-Slot ALOHA Anti-Collision using Precise Tag Estimation Scheme

... The ALOHA-based approaches usually refer to “Slot ALOHA” (Quan et ...of Slotted-ALOHA techniques is based on the “Pure ALOHA” introduced in early 1970s (Abramson 1970), where each tag ...

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Performance Analysis of RFID Framed Slotted Aloha Anti Collision Protocol

Performance Analysis of RFID Framed Slotted Aloha Anti Collision Protocol

... extensively analyzed and modeled either as a communi- cation system or as an RFID anti-collision protocol. The most classical paper that provides an exact analysis of the framed slotted aloha ...

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Efficient Framed Slotted Aloha Protocol for RFID Tag Anticollision Haifeng Wu and Yu Zeng

Efficient Framed Slotted Aloha Protocol for RFID Tag Anticollision Haifeng Wu and Yu Zeng

... (28) Fig. 6. Simulation result of slot number for protocol under V = 300% in (27). in which , and is the number of idle slot, successful slot and collision slot in a read cycle, respectively. From Fig. 5, we can see that ...

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Dynamic Frame Sizing with Grouping Slotted Aloha for UHF RFID Networks

Dynamic Frame Sizing with Grouping Slotted Aloha for UHF RFID Networks

... and Aloha based ...of Aloha based protocol is Framed Slotted Aloha (FSA) ...slot. Aloha based protocols have been found to operate at a system efficiency of ...

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A spatial slotted Aloha protocol in wireless networks for group communications

A spatial slotted Aloha protocol in wireless networks for group communications

... the dynamic framed SA-AC scheme, respectively. Then the dynamic framed SA-AC scheme utilizes τ dyn = 1/K dyn ...such dynamic TP may not be ...

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On the optimal configuration of framed slotted ALOHA

On the optimal configuration of framed slotted ALOHA

... the framed slotted ALOHA (FSA) protocol should be configured so that the minimum identification delay can be achieved with a preassigned confidence ...

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Dynamic Grouping Frame slotted Aloha

Dynamic Grouping Frame slotted Aloha

... CW CW CW CW Reader Tag Figure 1: Example of EPC Class 1 Gen 2 Protocol Frame sizing is the most important part of DFSA with Q- algorithm in EPC-global class 1 Gen 2 but there are some negative sides of this protocol ...

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Delay distributions of slotted ALOHA and CSMA

Delay distributions of slotted ALOHA and CSMA

... From 1996 to 1999, he was a Research Assistant with the National Mobile Communication Labo- ratory at Southeast University, Nanjing, China. In August 2003, he joined the Department of Electronic and Computer Engineering, ...

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MiSTA: An Age-Optimized Slotted ALOHA Protocol

MiSTA: An Age-Optimized Slotted ALOHA Protocol

... “thinned” slotted ALOHA, where the number of active users at steady state adjusts to optimize ...Threshold ALOHA policy proposed earlier (for which the lowest possible scaling is ...Threshold ...

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Multiple Access Protocols Pure And Slotted Aloha

Multiple Access Protocols Pure And Slotted Aloha

... pure aloha does have multiple access protocols and slotted aloha pure ...pure aloha does not allow several versions of multiple access protocols pure and slotted aloha at ...

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On Bistable Region of Slotted ALOHA Systems with Delay Constraints

On Bistable Region of Slotted ALOHA Systems with Delay Constraints

... Copyright ©2016 by authors, all rights reserved. Authors agree that this article remains permanently open access under the terms of the Creative Commons Attribution License 4.0 International License Abstract Bistable ...

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Slotted Aloha with multi AP diversity and APS transmit beamforming

Slotted Aloha with multi AP diversity and APS transmit beamforming

... architecture has been proposed for wireless local area networks, in which one user can associate with more than one access point [15]. This paper investigates slotted Aloha with multi-AP diversity and it ...

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Enhanced Collision-Free Slotted Aloha with Priority in Contention (SAPC)

Enhanced Collision-Free Slotted Aloha with Priority in Contention (SAPC)

... basic slotted Aloha protocol where the users are given a slot for transmitting the ...the slotted aloha protocol if one or more user tries to send packets in the given slot, then collisions ...

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Sharing Channel In IEEE Using The Cooperative Model Of Slotted ALOHA

Sharing Channel In IEEE Using The Cooperative Model Of Slotted ALOHA

... as ALOHA and its corresponding variations have been widely studied as efficient methods to coordinate the medium access among competing ...the slotted ALOHA protocol is implemented as a two-state ...

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Bit-Wise Decoders for Coded Modulation and Broadcast Coded Slotted ALOHA

Bit-Wise Decoders for Coded Modulation and Broadcast Coded Slotted ALOHA

... The second aspect of wireless communications treated in this thesis is multiple channel access. Our main objective here is to provide reliable message exchange between nodes in a wireless ad hoc network with stringent ...

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