Results 271 to 280 of about 5,914 (307)

Analysis of transmitting wire antenna

2012 International Conference on Power, Signals, Controls and Computation, 2012
Researches and investigations in transmitting wire antenna is continuing. The term wire means metallic, highly conducting, solid or tubular electrically thin wires, i.e. wires with diameter very small compared to the length of the wire and the wavelength of an incident plane wave.
E. M. Shareena, P Abdulla, B Lethakumary
openaire   +1 more source

Closed-loop transmit diversity schemes for five and six transmit antennas

IEEE Signal Processing Letters, 2005
Closed-loop, rate-one, channel orthogonalized space-time block codes (CO-STBCs) for three and four transmit antennas using a single (real) phase feedback term have been proposed . These codes achieve full diversity and result in maximum likelihood (ML) decoding with only linear processing at the receiver similar to OSTBCs.
J. Klutto Milleth   +2 more
openaire   +1 more source

Transmit Precoding for the Multiple Antenna Broadcast Channel

2006 IEEE 63rd Vehicular Technology Conference, 2006
In this paper we compare the following two methods of transmit preceding for the multiple antenna broadcast channel: vector perturbation applied to channel inversion (also termed zero forcing or ZF) precoding and scalar Tomlinson-Harashima (TH) precoding applied to sum-rate achieving transmit precoding.
Manish Airy   +3 more
openaire   +1 more source

A transmit antenna coding scheme for spatial modulation

2014 IEEE/CIC International Conference on Communications in China (ICCC), 2014
Spatial modulation (SM) is performed in both spatial and signal domains. The spatial-domain modulation involves the coding process of transmit antennas (TAs). The traditional coding method uses natural binary code, which leads to relatively poor bit error rate (BER) performance in spatial correlated channels.
Zhi Li   +3 more
openaire   +1 more source

TV Transmitting Antenna Selection

IEEE Transactions on Broadcasting, 1969
In the selection of a transmitting antenna, factors such as power gain, height above terrain, horizontal pattern directivity, amount of null fill, and beam tilt of the vertical pattern have to be taken into consideration to best satisfy the equipment availability and intended market coverage.
openaire   +1 more source

Robust transmit nulling in phased array antennas

2011 Conference Record of the Forty Fifth Asilomar Conference on Signals, Systems and Computers (ASILOMAR), 2011
The ability to create nulls in the transmit pattern of a phased array antenna has many applications for radar systems, including interference and clutter mitigation. Most nulling techniques introduce small perturbations in amplitude and phase, or phase-only, at each element of the phased array.
Peter G. Vouras, Jean de Graaf
openaire   +1 more source

Asymptotic capacity analysis of transmit antenna selection

International Symposium onInformation Theory, 2004. ISIT 2004. Proceedings., 2004
In this work we investigate the asymptotic behavior of the capacity of transmit antenna selection, in the limit of large number of transmit antennas, under both low and high SNR regimes. Antenna selection provides a low-cost low complexity solution for MIMO systems.
Shahab Sanayei, Aria Nosratinia
openaire   +1 more source

Turbo processing in transmit antenna diversity systems

Annales Des Télécommunications, 2001
We consider turbo-trellis-coded transmission over fading multiple-input-multiple-output (M1M0) channels with transmit diversity using space-time block codes. We give a new view on space-time block codes as a transformation of the fading MIMO channel towards a Gaussian single-input-single-output (siso) channel and provide analytical results on the BER ...
Gerhard Bauch 0001   +2 more
openaire   +1 more source

The distribution of current in a transmitting antenna

Journal of the Institution of Electrical Engineers, 1928
This investigation was carried out for the purpose of finding whether the assumption usually made regarding the distribution of current in an antenna was a sufficiently close approximation to the conditions that obtain in practice. The current distribution of a straight, vertical antenna was found experimentally by placing ammeters at various points ...
openaire   +1 more source

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