Evaluations of Channel Capacity under Various Adaptation Policies and Diversity Techniques

2013 ◽  
pp. 193-220
Keyword(s):  
Channel Capacity ◽  
Diversity Techniques ◽  
Adaptation Policies

Capacity of Optical Wireless System over Log-Normal Channels with Spatial Diversity in Presence of Atmospheric Losses

2018 ◽  
Vol 39 (3) ◽  
pp. 349-357 ◽  
Author(s):  
Rahul Kaushik ◽  
Vineet Khandelwal ◽  
R.C. Jain
Keyword(s):  
Atmospheric Turbulence ◽  
Channel Capacity ◽  
Random Variable ◽  
Weather Conditions ◽  
Spatial Diversity ◽  
Closed Form Expression ◽  
Atmospheric Conditions ◽  
Optical Wireless ◽  
Diversity Techniques ◽  
Log Normal

Abstract In this paper, average channel capacity of optical wireless communication system is evaluated under the combined effect of geometrical loss, attenuation due to weather conditions and weak atmospheric turbulence using a simple closed form expression. Fading induced due to atmospheric turbulence is modeled by log-normal distribution. Considering the fact that the sum of log-normal random variables can be well approximated by another log-normal random variable, the proposed expression has been utilized to compute the channel capacity for spatial diversity reception employing maximum ratio combining and equal gain combining over uncorrelated turbulence-induced fading conditions. It is shown that spatial diversity is an effective technique to mitigate the impairments caused by various atmospheric conditions such as haze, rain and fog. The quantitative improvement in channel capacity achieved by using diversity techniques is investigated and compared. Accuracy of the results is validated with exact results computed using Monte Carlo simulation.

scholarly journals Channel Capacity of MIMO System in Rayleigh Fading Channel with Receiver Diversity Technique

10.29007/hvwf ◽  
2018 ◽  
Author(s):  
Palak Patel ◽  
Darshankumar Dalwadi ◽  
Hiren Patel ◽  
Anita Bhatt
Keyword(s):  
Channel Capacity ◽  
Fading Channel ◽  
Rayleigh Fading ◽  
Mimo System ◽  
Rayleigh Fading Channel ◽  
Receiver Diversity ◽  
Diversity Techniques ◽  
Modulation Technique ◽  
Qam Modulation ◽  
Diversity Technique

In this paper, we have evaluated the channel capacity of SISO and MIMO system with respect to Rayleigh fading channel. We have compared the results with respect to different receiver diversity techniques like MRC, EGC, SC. We have presented the results of SER v/s SNR with respect to 16-QAM modulation technique. We have also presented the results of SNR v/s capacity of SISO and MIMO system. For simulation, we have used MATLAB R2014 software.

Regression-Based Channel Capacity for the Evaluation of 2×2 MIMO Antennas

2017 ◽  
Vol E100.B (2) ◽  
pp. 323-335 ◽  
Author(s):  
Kazuhiro HONDA ◽  
Takeshi KITAMURA ◽  
Kun LI ◽  
Koichi OGAWA
Keyword(s):  
Channel Capacity ◽  
Mimo Antennas

Evaluation of Cooperative Diversity Techniques Using STC for Future S-DMB Services

2009 ◽  
Vol E92-B (11) ◽  
pp. 3345-3353 ◽  
Author(s):  
Sooyoung KIM ◽  
Unhee PARK ◽  
Hee-Wook KIM ◽  
Do-Seob AHN
Keyword(s):  
Cooperative Diversity ◽  
Diversity Techniques

A Low-Profile Dual-Polarized Directional Antenna for Enhancing Channel Capacity in Indoor MIMO Systems

2010 ◽  
Vol E93-B (10) ◽  
pp. 2570-2577 ◽  
Author(s):  
Daisuke UCHIDA ◽  
Hiroyuki ARAI ◽  
Yuki INOUE ◽  
Keizo CHO
Keyword(s):  
Channel Capacity ◽  
Mimo Systems ◽  
Directional Antenna ◽  
Low Profile ◽  
Dual Polarized

Channel Capacity Improvement in Near-Field MIMO System Using Metal Wires

2013 ◽  
Vol E96.B (5) ◽  
pp. 1141-1148 ◽  
Author(s):  
Dalin ZHANG ◽  
Toshikazu HORI ◽  
Mitoshi FUJIMOTO
Keyword(s):  
Channel Capacity ◽  
Mimo System ◽  
Near Field ◽  
Capacity Improvement ◽  
Metal Wires
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