The Differential Modulation Technique
Adaptive differential amplitude pulse position modulation technique for optical wireless communication channels based on fuzzy logic
... the modulation schemes for optical wireless communication channel analysis shows that, OOK is the simplest scheme, therefore, it does not require symbol synchronisation and the minimum bandwidth requirements, but ...
6
Polarization Shift Keying Modulation: A Novel Modulation Technique for FSO Systems
... Many modulation techniques have been proposed to be used in FSO based communication systems based on intensity, frequency and phase modulation such as On-Off Keying, Binary Phase Shift Keying-Subcarrier ...
6
Multiple-Symbol Differential Detection for Spatial Modulation
... conventional Differential Spatial Modulation (DSM) as compared to coherent Spatial Modulation ...Multiple-Symbol Differential Detection (MSDD) technique is proposed for DSM systems to ...
7
Dynamic Differential Modulation of Sub-Carriers in OFDM
... of modulation technique that is suitable for the individual channels (sub-carriers)? These are the questions we seek to answer in this work, using simulation results to illustrate our theoretical ...
8
Adaptive differential amplitude pulse position modulation technique (DAPPM) using fuzzy logic for optical wireless communication channels
... The symbol length varies from {1, 2…L} and the pulse amplitude is selected from {1, 2…A}, where A and L are integers. A set of DAPPM waveforms is shown in Figure 2.10. The average number of empty slots preceding the ...
44
Data Transmission Using Barcode Modulation Technique
... Keywords: Barcode, data transfer, differential phase shift keying, orthogonal frequency-division multiplexing (OFDM) modulation. I. INTRODUCTION Barcode have played a great role in facilitating numerous ...
6
Data Transmission Using Barcode Modulation Technique
... facts modulation in 2-D bar codes is introduced, and its conventional typical overall performance is evaluated in evaluation to unique famous methods of bar code ...new technique, orthogonal ...
6
1 Differential Space–Frequency Modulation and Fast 2D–Multiple–Symbol Differential Detection for MIMO–OFDM
... adopted modulation technique for transmission over frequency–selective ...scenarios, differential encoding and detection without the need for CSI becomes an attractive ...
32
FSO Optical System Utilizing DPSK Advance Modulation Technique
... a differential detection balanced receiver, which generates an electrical signal by Decoding on the channel code correctly situation the threshold for tough choice, or by performing soft choice The purpose of an ...
12
Design of a Differential-Drive Wheeled Robot Controller with Pulse-Width Modulation
... control technique based on pulse-width modulation (PWM). This technique is employed on AMiR which is an autonomous miniature robot for swarm robotic ...uses differential drive with a caster ...
5
Data Detection and Channel Estimation of OFDM Systems Using Differential Modulation
... 3, differential OFDM systems are described. At first, we apply differential modulation in single carrier systems, where channels without memory have been ...a differential OFDM system, where ...
96
Dose Modulation Technique in CT
... Dose Technique For Conventional Radiography Image contrast of Film = Subject Contrast * Film Contrast (γ) * Dose Image contrast = Subject Contrast * Film Contrast (γ γ γ) * kVp * mA * sec γ CXR = Lung↑ * (γ ...
17
CiteSeerX — Differential space-time modulation
... to differential modulation extends in a natural way to and to single-antenna ...of differential modulation schemes for any number of transmit antennas and any signal constellation, we have ...
12
Differential modulation of fibroblast properties in scleroderma
... I also examined the fibroblast response to endothelin-1 peptide produced by activated endothelial cells. In addition to its role in vascular tone endothelin-1 has been recently shown to be a fibroblast mitogen and have a ...
214
Improving Performance in WIMAX System Based on Wavelet Packet Modulation Technique and AWGN with DQPSK Modulation Technique
... DQPSK Modulation Technique secret writing uses quality programmer in similar having interleave between ...equipment modulation techniques that are utilized in the foremost recent wireless standards, ...
9
INFORMATION SECURITY USING MODULATION TECHNIQUE
... 8.88×10 19 10.75×10 22 10.75×10 22 7. Min. Time required to find all Permutations 1028 Days 3409 Years 3409 Years Previously existing method for information security was algorithm SKG 1.0, which was proposed on concept ...
8
Spatial Modulation – A Low Complexity Modulation Technique for Visible Light Communications
... signal modulation imposed on the optical ...signal modulation such as pulse amplitude modulation (PAM) [9], PPM [4], and orthogonal frequency division multiplexing (OFDM) [10], among ...signal ...
23
Space Vector Pulse Width Modulation Technique
... Simran Bhalla, Dr. Jagdish Kumar ,Department of Electrical Engineering PEC university, Chandigarh, India E-mail: [email protected] [email protected] Abstract- With advances in solid-state power electronic devices ...
7
Differential spatial modulation for high rate transmission systems
... the symbol rate, and knowledge of the channel can be obtained via training. Unfortunately, obtaining channel knowledge is not always realizable when the channel changes quickly. Moreover, for MIMO channels, the num- ber ...
12
Differential Transform Technique for Second Order Differential Equations: A Comparative Approach
... It is an alternative procedure for obtaining the Taylor series solution of the given differential equation and is promising for various other types of differential equations. By application of the method, ...
5