scholarly journals Proposal and Evaluation of CoMP System with Alamouti Transmission Diversity and MIMO Configuration

2018 ◽  
Vol 22 (4) ◽  
pp. 175-178 ◽  
Author(s):  
Naoki Ogi ◽  
Takeshi Hattori ◽  
Masakatsu Ogawa
Keyword(s):  
Transmission Diversity

scholarly journals Improvement of Multipath Channel Performance for Optical MIMO-OFDM in LED Modulation with Fully Generalized Spatial-Frequency

2021 ◽  
Author(s):  
Nandhini Devi R ◽  
Leones Sherwin VimalrajS ◽  
Lydia J
Keyword(s):  
Optical Communication ◽  
Spatial Multiplexing ◽  
Modulation Scheme ◽  
New Concepts ◽  
Data Rates ◽  
Error Ratio ◽  
Bit Error Ratio ◽  
Mimo Ofdm ◽  
Transmission Diversity ◽  
Ofdm Signals

This paper suggests a scheme to generalize the idea of LED index modulation concept by using the spatial multiplexing principle to relay complex OFDM signals through various channels such as AWGN, Rayleigh and Rician by splitting these signals into their real-imaginary and positive-negative components. In order to combat ISI as well as to increase the channel capacity. The MIMO-OFDM efficiency analysis, taking into account the constraint of the forward current of the LED is extracted. The accuracy of the theoretical results is verified by comparing the Bit Error Ratio (BER) reduction and improvement to the (SNR) results under varying condition of the channel. Using MIMO-OFDM as next-generation techniques, along with QAM aims to provide development of new concepts that will lead to the growth of future optical communication. Simulation results validate data rates gained over optical communication using LED modulation scheme and the pure transmission diversity method.

Transmission diversity for JPEG 2000

2001 ◽  
Vol 37 (23) ◽  
pp. 1383
Author(s):  
S. Emami
Keyword(s):  
Jpeg 2000 ◽  
Transmission Diversity
Sign in / Sign up

Export Citation Format

Share Document