Results 31 to 40 of about 27,971 (206)

Design of a Quaternary Query Tree ALOHA Protocol Based on Optimal Tag Estimation Method

open access: yesInformation, 2016
Radio Frequency Identification (RFID) technology is one of the most promising technologies in the IoT (The Internet of Things) era. Many RFID systems have been used in supermarkets or warehouses.
Zhihui Fu, Fangming Deng, Xiang Wu
doaj   +1 more source

Age of Information in Slotted ALOHA With Energy Harvesting [PDF]

open access: yesGLOBECOM 2023 - 2023 IEEE Global Communications Conference, 2023
We examine the age of information (AoI) of a status update system that incorporates energy harvesting and uses the slotted ALOHA protocol. We derive analytically the average AoI and the probability that the AoI exceeds a given threshold. Via numerical results, we investigate two strategies to minimize the age of information (AoI): transmitting a new ...
Ngo, Khac-Hoang   +4 more
openaire   +5 more sources

Interference in spatial non-slotted Aloha networks [PDF]

open access: yes, 2014
In this paper we propose two analytically tractable stochastic-geometric models of interference in ad-hoc networks using pure (non-slotted) Aloha as the medium access.
Mühlethaler, Paul, Blaszczyszyn, Bartek
core   +2 more sources

Short-term Fairness Analysis of Connection-based Slotted-Aloha

open access: yes, 2023
Slotted-Aloha (S-Aloha) has been widely employed in random access networks owing to its simple implementation in a distributed manner. To enhance the throughput performance of the S-Aloha, connection-based slotted-Aloha (CS-Aloha) has been proposed in ...
김유라
core   +1 more source

MiSTA: An Age-Optimized Slotted ALOHA Protocol [PDF]

open access: yes, 2022
We introduce minislotted threshold ALOHA (MiSTA), a slotted ALOHA modification designed to minimize the network-wide time average Age of Information (AoI). In MiSTA, sources whose ages are below a certain threshold stay silent.
Ahmetoglu, Mutlu   +2 more
core   +1 more source

A Game Theoretic Approach to Irregular Repetition Slotted Aloha

open access: yesIEEE Access, 2022
Many technological enhancements are being developed worldwide to enable the “Internet of Things” (IoT). IoT networks largely rely on distributed access of billions of devices, but are still lagging in terms of combined reliability and low ...
Iman Hmedoush   +3 more
doaj   +1 more source

Slotted ALOHA CDMA By Dual Model Path Gains [PDF]

open access: yes, 2009
Throughput Slotted ALOHA CDMA by dual model path gain Nakagami/Nakagami fading channel by capture effect is analyzed. The approach of fading effect to BER is calculated by path gain.
Saragih, Hoga   +3 more
core   +1 more source

Modeling Slotted Aloha as a Stochastic Game with Random Discrete Power Selection Algorithms

open access: yesJournal of Computer Systems, Networks, and Communications, 2009
We consider the uplink case of a cellular system where 𝑚 bufferless mobiles transmit over a common channel to a base station, using the slotted aloha medium access protocol.
Rachid El-Azouzi   +3 more
doaj   +1 more source

An adaptive frame slotted ALOHA anti‐collision algorithm based on tag grouping

open access: yesCognitive Computation and Systems, 2021
Multi‐tag anti‐collision is an important problem in radio frequency identification (RFID) application. Solving the problem is of great significance to the RFID technology application and the future internet of things; therefore, an adaptive frame slotted
Junsuo Qu, Ting Wang
doaj   +1 more source

MAC Protocol Design for Optical Wireless Body‐Area Networks: Latency, Energy Efficiency and Scalability Analysis

open access: yesIET Networks, Volume 15, Issue 1, January/December 2026.
This work investigates suitable MAC protocols for medical optical wireless body‐area networks (WBANs), focussing on multiple access management. Using realistic channel models, we evaluate the network performance in terms of energy efficiency, quality‐of‐service and scalability for different IEEE protocols, for both intra‐ and extra‐WBAN connectivity in
Christos Giachoudis   +5 more
wiley   +1 more source

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