Results 91 to 100 of about 262 (112)

Presurgical language mapping using event-related high-gamma activity: The Detroit procedure. [PDF]

open access: yesClin Neurophysiol, 2018
Kambara T   +10 more
europepmc   +1 more source

Performance Analysis of CRDSA Based on M2M Flow Model

Lecture Notes in Electrical Engineering, 2021
Internet of Things (IoT) is an important application scenario in the fifth generation of mobile communications. Machine to machine (M2M) is the most common form of IoT application at present. With the rapid development of IoT in the world in recent years, M2M systems have been widely used in various fields.
Xiaoling Fu, Yanyong Su
exaly   +2 more sources

Performance Evaluation of Access Control for CRDSA and R-CRDSA Under High Traffic Load

MILCOM 2013 - 2013 IEEE Military Communications Conference, 2013
In this paper, we propose access control schemes for the contention resolution diversity slotted ALOHA (CRDSA) and the reservation-CRDSA (R-CRDSA) schemes to enhance throughput under high traffic loads. We also propose an estimation technique for the traffic load of CRDSA. In slotted ALOHA, many schemes have been proposed for the same purpose.
Jong-Kwan Lee, Jae-Sung Lim
exaly   +2 more sources

Asynchronous Contention Resolution Diversity ALOHA: Making CRDSA Truly Asynchronous

IEEE Transactions on Wireless Communications, 2014
Following the introduction of contention resolution diversity slotted ALOHA (CRDSA), a number of variants of the scheme have been proposed in literature. A major drawback of these slotted random access (RA) schemes is related to the need to keep slot synchronization among all transmitters.
Riccardo De Gaudenzi   +1 more
exaly   +3 more sources

Maximum Achievable Sum Rate of CRDSA Under Total Transmit Power Limitation

2020 IEEE 92nd Vehicular Technology Conference (VTC2020-Fall), 2020
In this paper, we propose a new transmit power diversity scheme for contention resolution diversity slotted ALOHA (CRDSA) under total transmit power limitation in satellite networks. In the proposed scheme, the total transmit power of each device within a frame is considered to be the same, and allocated to multiple packet replicas, and the transmit ...
Dong Xiaodai, Guangliang Ren, Bo Zhao
exaly   +3 more sources

R-CRDSA: Reservation-Contention Resolution Diversity Slotted ALOHA for Satellite Networks

IEEE Communications Letters, 2012
In this letter, a reservation scheme with contention resolution diversity slotted ALOHA (CRDSA), called R-CRDSA, is proposed. Although CRDSA promises excellent performance compared to slotted ALOHA (SA), there are two barriers to be overcome for its use in satellite networks. The first is a low critical point of an offered load; i.e., at this point, as
MinWoo Lee, Jaesung Lim, Jae-Joon Lee
exaly   +2 more sources

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