Results 61 to 70 of about 2,093,139 (198)
Satellite-matrix-switched, time-division-multiple-access network simulator [PDF]
A versatile experimental Ka-band network simulator has been implemented at the NASA Lewis Research Center to demonstrate and evaluate a satellite-matrix-switched, time-division-multiple-access (SMS-TDMA) network and to evaluate future digital ground ...
Andro, Monty +4 more
core +1 more source
International Journal of Distributed Sensor Networks, 2017 In this article, we propose a time division multiple access scheduling algorithm for end-to-end on-time packet delivery in multi-hop wireless sensor networks.
Junhee Lee +2 more
doaj +1 more source
Choice of FDMA/SCPC access technique for aeronautical satellite voice system [PDF]
A worldwide aeronautical mobile satellite system is about to become operational. The system architecture and access methods have been debated extensively, resulting in the selection of Time Division Multiplexing/Time Division Multiple Access (TDM/TDMA ...
Smith, G. K.
core +1 more source
Layered Steered Space–Time-Spreading-Aided Generalized MC DS-CDMA
, 2010 —We present a novel trifunctional multiple-input– multiple-output (MIMO) scheme that intrinsically amalgamates space–time spreading (STS) to achieve a diversity gain and a Vertical Bell Labs layered space–time (V-BLAST) scheme to attain a multiplexing ...
Alamri, Osamah +3 more
core +1 more source
Three Decades of 3GPP Target Cell Search through 3G, 4G, and 5G
IEEE Access, 2020 This survey provides the reader with the open literature on the detailed operational scenarios of Target Cell Search (TCS) in both 3G and 4G systems, with a particular emphasis on the DownLink (DL).
Seunghwan Won, Sang Won Choi
doaj +1 more source
Theoretical Investigation into Spectral Coexistence of CDMA and TDMA Systems
The Journal of Engineering Research, 2008 The scarcity of available radio spectrum presently limits the extension of modern multimedia systems. This paper presents a theoretical investigation into the possibility of using a frequency overlay of a narrowband Code Division Multiple Access (CDMA ...
A.M. Abbosh, M. A. Shehathah
doaj +1 more source
Study of optoelectronic switch for satellite-switched time-division multiple access [PDF]
The use of optoelectronic switching for satellite switched time division multiple access will improve the isolation and reduce the crosstalk of an IF switch matrix. The results are presented of a study on optoelectronic switching.
Jou, Liz, Lenart, Joe, Su, Shing-Fong
core +1 more source
Extremely low frequency based communication link [PDF]
, 2009 The paper discusses the literature review and the possibility of using the ground itself as transmission medium for various users’ transceivers and an administrator transceiver using Multi-Carrier-Direct Sequence-Code Division Multiple Access (MC-DS-CDMA)
Alaiwi, A +3 more
core
Experimental study of different turbo coding rates for MIMO-OFDM system
Journal of Measurement Science and Instrumentation, 2016 Multi-input multi-output orthogonal frequency division multiplexing（MIMO-OFDM）is the foremost space interface for 4Gand 5Gbroadband wireless communication.MIMO can transmit diverse signals over multiple antennas and OFDM can divide a radio channel into a
Priti Subramanium, Rajeshree D Raut
doaj
Time Division Multiple Access for Remote Lab (TDMA-RL)
International Journal of Online and Biomedical Engineering (iJOE), 2022 The new technologies development has enabled us to build a remote lab system for multiple disciplines. The remote lab system becomes an essential for eLearning system. Multiple solution has been provided in the literature for building remote laboratory. All existing and commercialized system do not provide the multiusers process at the same time.
openaire +1 more source