Results 71 to 80 of about 2,065,034 (119)

Effective Throughput of Cognitive Multiple Access Channel Under Collision Constraints and Imperfect Sensing

Dianxin kexue, 2015
The problem of effective throughput of multiple secondary users access to the spectrum of primary user in the cognitive multiple access channel under collision constraints and imperfect channel state information was discussed.
Zhengying Xiao, Xianzhong Xie, Senlin Zhang   +2 more
doaj   +2 more sources

Novel half-duplex relay strategy and its resource allocation

Tongxin xuebao, 2009
Conventional time-division half-duplex relay strategies based on amplify-and-forward or decode-and-forward strategy could relieve relay nodes from full-duplex requirement but lead to degraded spectrum efficiency.
LI Yong, WANG Wen-bo, KONG Jia, PENG Mu-gen   +3 more
doaj   +2 more sources

Distributed Learning for Dynamic Channel Access in Underwater Sensor Networks. [PDF]

Entropy (Basel), 2020
Shin H, Kim Y, Baek S, Song Y.
europepmc   +1 more source

A deep-learning-based MAC for integrating channel access, rate adaptation, and channel switch

Digital Communications and Networks
With increasing density and heterogeneity in unlicensed wireless networks, traditional MAC protocols, such as Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) in Wi-Fi networks, are experiencing performance degradation. This is manifested
Jiantao Xin, Wei Xu, Bin Cao, Taotao Wang, Shengli Zhang   +4 more
doaj   +1 more source

Exploiting Phase Diversity for CDMA2000 1X Smart Antenna Base Stations

EURASIP Journal on Advances in Signal Processing, 2004
A performance analysis of an access channel decoder is presented which exploits a diversity gain due to the independent magnitude of received signals energy at each of the antenna elements of a smart-antenna base-station transceiver subsystem (BTS ...
Hyeon Seungheon, Choi Seungwon, Kim Seongdo   +2 more
doaj   +1 more source

Activity Detection and Channel Estimation Based on Correlated Hybrid Message Passing for Grant-Free Massive Random Access

Entropy
Massive machine-type communications (mMTC) in future 6G networks will involve a vast number of devices with sporadic traffic. Grant-free access has emerged as an effective strategy to reduce the access latency and processing overhead by allowing devices ...
Xiaofeng Liu, Xinrui Gong, Xiao Fu
doaj   +1 more source

OrMAC: A Hybrid MAC Protocol Using Orthogonal Codes for Channel Access in M2M Networks. [PDF]

Sensors (Basel), 2017
Shitiri E, Park IS, Cho HS.
europepmc   +1 more source

Medical-Grade Channel Access and Admission Control in 802.11e EDCA for Healthcare Applications. [PDF]

PLoS One, 2016
Son S, Park KJ, Park EC.
europepmc   +1 more source

An Adaptive Channel Access Method for Dynamic Super Dense Wireless Sensor Networks. [PDF]

Sensors (Basel), 2015
Lei C, Bie H, Fang G, Zhang X.
europepmc   +1 more source

Research on multi-channel access strategy based on congestion control with burst traffic in CRNs. [PDF]

PLoS One
Xu Q, Zhang Q, Bi Y, Gaber J.
europepmc   +1 more source