Results 251 to 260 of about 4,631,205 (312)

Transmit diversity for arrays with correlated Rayleigh fading

Conference Record of the Thirty-Fourth Asilomar Conference on Signals, Systems and Computers (Cat. No.00CH37154), 2002
Transmit diversity is usually presented for the case of independently faded channels. In this paper the structure of a linear transmitter that can be optimized for a Rayleigh-fading environment in which the fading may be correlated is derived. The transmitter achieves the best mix of array gain-obtained by beamforming, and diversity gain-obtained by ...
Cornelius van Rensburg, Benjamin Friedlander   +1 more
openaire   +1 more source

An algorithm for generalized transmit diversity

GLOBECOM'01. IEEE Global Telecommunications Conference (Cat. No.01CH37270), 2002
In this paper an algorithm for generalized transmit diversity is proposed. Depending on the signal-to-interference-plus-noise ratio maximization criterion full diversity (all available transmit antennas) or partial diversity (only subset of all available transmit antennas) is used and phase adjustment is applied between selected antennas.
D.M. Novakovic, M.J. Juntti, M.L. Dukic
openaire   +1 more source

Differential Multiple-Length Transmit Diversity

IEEE Communications Letters, 2004
We propose a new bandwidth-efficient differential transmit diversity scheme as an extension of differential space-time block codes from orthogonal designs. The information is coded in both the difference of successive unit-length vectors and the length difference of successive transmit vectors.
openaire   +1 more source

Transmit diversity in LTE network

2013 21st Telecommunications Forum Telfor (TELFOR), 2013
This paper investigate the effect of transmit diversity in LTE downlink transmission. Transmit diversity scheme known as Space Frequency Block Codes (SFBC) is considered. As performances metrics, the average BER is evaluated in terms of signal to interference-plus-noise ratio (SINR).
Andrei Vasile Iordache, Ion Marghescu
openaire   +1 more source

On transmit diversity for TD-SCDMA

The 57th IEEE Semiannual Vehicular Technology Conference, 2003. VTC 2003-Spring., 2004
In TD-SCDMA (UMTS TDD 1.28 Mcps mode) advanced techniques such as closed loop transmit diversity (CLTD) are foreseen. Deployment of CLTD influences the choice of receiver architecture and depends on propagation conditions, mobile speed, feedback delay, antenna weight computation and quantization.
I. Held, A. Kerroum
openaire   +1 more source

Transmit diversity for TDD systems

SPIE Proceedings, 2002
Multiple input multiple output (MIMO) communications have been a hot research area in recent years. Most literature makes the assumption that the channel information is not known at the transmitter but known perfectly at the receiver. We focus on the situation where both the transmitter and the receiver know the channel information.
Jibing Wang, Kung Yao
openaire   +1 more source

Transmit Diversity Based Interference Cancellation

VTC Spring 2008 - IEEE Vehicular Technology Conference, 2008
In this paper, we describe a transmit diversity technique for canceling partially-known interference. For a single interferer in a flat fading channel, the desired user transmitter transmits conjugated and time-reversed interferer symbols in two successive symbol periods (or subcarriers) along with one desired user symbol.
openaire   +2 more sources

Transmit diversity in mobile communications

14th International Conference on Microwaves, Radar and Wireless Communications. MIKON - 2002. Conference Proceedings (IEEE Cat.No.02EX562), 2003
This paper shows the transmit diversity (TD) techniques in applications for communication systems. General classification of the TD techniques for both TDMA and CDMA systems is presented. Some very promising TD techniques are characterized, i.e. code division TD (CDTD) and the time division TD (TDTD).
R. Katulski, M. Mikolajski
openaire   +1 more source

Simple Transmit Diversity Techniques for Wireless Communications

Smart Innovations in Communication and Computational Sciences, 2018
K. Mahender, T. A. Kumar, K. Ramesh
semanticscholar   +1 more source

On the Combination of Double Space Time Transmit Diversity With Spatial Modulation

IEEE Transactions on Wireless Communications, 2018
Minh-Tuan Le, Tien-Dong Nguyen, X. Tran, Vu-Duc Ngo   +3 more
semanticscholar   +1 more source