Results 191 to 200 of about 2,124,128 (244)
Some of the next articles are maybe not open access.
Profiling of mobile Radio Channels
ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020One of the essential challenges for MIMO or massive MIMO and cooperative multipoint systems is obtaining accurate channel state information (CSI) at the base station side, as the related closed loop MIMO precoders are sensitive to channel aging effects.
Wolfgang Zirwas, Mikael Sternad
openaire +2 more sources
IEEE Communications Magazine, 1991
Following a brief prologue and historical overview, such technical issues as the repertoire of systems and services, management of the airwaves, the operating environment, service quality, network issues and cell size, channel coding and modulation, speech coding, diversity, multiplex, and multiple access (FDMA, TDMA, CDMA) are discussed.
openaire +2 more sources
Following a brief prologue and historical overview, such technical issues as the repertoire of systems and services, management of the airwaves, the operating environment, service quality, network issues and cell size, channel coding and modulation, speech coding, diversity, multiplex, and multiple access (FDMA, TDMA, CDMA) are discussed.
openaire +2 more sources
Terrestrial Mobile Radio Propagation
2011The basic principles regarding radiowaves propagation in the mobile radio systems and effects of different phenomena, and parameters on these waves are outlined in this chapter. The issues provided are helpful in design and application of this kind of radiowaves.
Ali Abedi +2 more
openaire +2 more sources
Mobile radio traffic consideration
31st IEEE Vehicular Technology Conference, 1981In a trunked mobile radio system a number of mobiles or stations in a "fleet" (user) communicate with their respective "dispatcher" or among themselves using a number of radio channels common to other users. The literature to date has attempted to characterize the subtle differences between this sort of trunked system with that found in telephone ...
R.R. Mina, J.M. Krashaar
openaire +2 more sources
Channel parameter estimation in mobile radio environments using the SAGE algorithm
IEEE J. Sel. Areas Commun., 1999This study investigates the application potential of the SAGE (space-alternating generalized expectation-maximization) algorithm to jointly estimate the relative delay, incidence azimuth, Doppler frequency, and complex amplitude of impinging waves in ...
B. Fleury +4 more
semanticscholar +1 more source
2009
"This is an IEEE classic reissue of the book published by John Wiley & Sons in 1974.This definitive text and reference covers all aspects of microwave mobile systems design. Encompassing ten years of advanced research in the field, it reviews basic microwave theory, explains how cellular systems work and presents useful techniques for effective systems
openaire +2 more sources
"This is an IEEE classic reissue of the book published by John Wiley & Sons in 1974.This definitive text and reference covers all aspects of microwave mobile systems design. Encompassing ten years of advanced research in the field, it reviews basic microwave theory, explains how cellular systems work and presents useful techniques for effective systems
openaire +2 more sources
Packetizing voice for mobile radio [PDF]
IEEE Transactions on Communications, 1994 In present mobile radio systems, conventional FM techniques are used to transmit speech in its analog form. A number of digital schemes have been proposed in the past as an alternative. To overcome the effects of Rayleigh fades that appear in the received speech as noise bursts in the form of "pops" and "clicks", the author proposes packetizing speech ...
openaire +2 more sources
The Mobilization of Weimar Radio
Transfers, 2013This essay addresses the effects and experiences that become possible, and become the object of fascination and reflection, when early German radio mobilized-when it moved out of the studio to transmit from places in the "outside world." Mobile electro-acoustic technologies enabled a new sense of exteriority and new experiences of time and space.
openaire +2 more sources
Mobility Model for Multimedia Mobile Radio Network
2003The aim of this work is to develop a mobility and traffic model for multimedia mobile radio networks. These models are developed according to measures from two considered service areas and they analyzed by simulation. Users issue multimedia calls which are to be managed according to a traffic model.
Sonia Ben Rejeb +2 more
openaire +2 more sources
Information theoretic considerations for cellular mobile radio
, 1994We present some information-theoretic considerations used to determine upper bounds on the information rates that can be reliably transmitted over a two-ray propagation path mobile radio channel model, operating in a time division multiplex access (TDMA)
L. Ozarow, S. Shamai, A. Wyner
semanticscholar +1 more source