Results 81 to 90 of about 19,525 (187)
Physical Channel Access (PCA): Time and Frequency Access Methods Emulation in NS-2 [PDF]
, 2013 We present an NS-2 module, Physical Channel Access (PCA), to simulate different access methods on a link shared with Multi-Frequency Time Division Multiple Access (MF-TDMA).
Bui, Huyen-Chi +5 more
core
Multiuser chirp modulation for underwater acoustic channel based on VTRM
International Journal of Naval Architecture and Ocean Engineering, 2017 In this paper, an ascheme is proposed for multiuser underwater acoustic communication by using the multi-chirp rate signals. It differs from the well known TDMA (Time Division Multiple Access), FDMA (Frequency Division Multiple Access) or CDMA (Code ...
Fei Yuan, Qian Wei, En Cheng
doaj +1 more source
TDMA scheduling problem avoiding interference in multi-hop wireless sensor networks
Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2016 In this paper, we consider a multi-hop sensor network, where the network topology is a tree, TDMA (time division multiple access) is employed as medium access control, and all data generated at sensor nodes are delivered to a sink node (the base station)
Mihiro SASAKI +3 more
doaj +1 more source
, 2014 Mobile phone 1800MHz band already allowed to be used in some airlines. Many studies talked about lower the mobile phone output power to the lowest of 0dBm, but seldom talk about the Random Access Channel RACH, which will emit at the highest power of 30dBm at the instant of call making and is not controllable until the connection between the Base ...
openaire +2 more sources
Service offerings and interfaces for the ACTS network of Earth stations [PDF]
The Advanced Communications Satellite (ACTS) is capable of two modes of communication. Mode 1 is a mesh network of Earth stations using baseband-switched, time-division multiple-access (BBS-TDMA) and hopping beams.
Coney, Thom A.
core +1 more source
Wireless Networks with Energy Harvesting and Power Transfer: Joint Power and Time Allocation
, 2016 In this paper, we consider wireless powered communication networks which could operate perpetually, as the base station (BS) broadcasts energy to the multiple energy harvesting (EH) information transmitters. These employ "harvest then transmit" mechanism,
Duong, Trung Q. +3 more
core +1 more source
Aeronautical mobile TDMA/MCTDMA system [PDF]
A multiple carrier Time Division Multiple Access (TDMA) system capable of supporting voice, stream data, and packet data traffic between aircraft and ground terminals is presented. Demand assignment permits efficient resource sharing for voice and stream
Magill, Thomas, Pierzga, Wayne
core +1 more source
Extracción en lazo abierto de la fase de portadora en sistemas de demodulación coherente [PDF]
, 1989 The Burst transmision of digital data, using Time Division Multiple Access, has became one of the more usual techniques in the satellite communications systems.
Cabrera-Bean, Margarita +2 more
core
Asymmetric Propagation Delay-Aware TDMA MAC Protocol for Mobile Underwater Acoustic Sensor Networks
Applied Sciences, 2018 The propagation delay in mobile underwater acoustic sensor network (MUASN) is asymmetric because of its low sound propagation speed, and this asymmetry grows with the increase in packet travel time, which damages the collision avoidance mechanism of the ...
A-Ra Cho +3 more
doaj +1 more source
Pulsed response of a traveling-wave tube [PDF]
The consequence of frequency-domain multiple access (FDMA) channelization in a satellite communications system is that the ground- and space-based components are often required to operate at reduced output power to prevent the generation of distortions ...
May, Brian D.
core +1 more source