Channel capacity assessments in UWB communication system over lognormal fading

2006 ◽  
Author(s):  
M. Saleem ◽  
B.T. Sieskul ◽  
T. Kaiser
Keyword(s):  
Channel Capacity ◽  
Communication System ◽  
Uwb Communication

A novel OVSF-TH-UWB communication system

2007 ◽  
Author(s):  
Zeng Fanzi ◽  
Liang Hualin ◽  
Li Renfa ◽  
Luo Juan ◽  
Wu Di
Keyword(s):  
Communication System ◽  
Uwb Communication

scholarly journals Performance Improvement for Mixed RF–FSO Communication System by Adopting Hybrid Subcarrier Intensity Modulation

2019 ◽  
Vol 9 (18) ◽  
pp. 3724 ◽  
Author(s):  
Jiang ◽  
Zhao ◽  
Liu ◽  
Deng ◽  
Luo ◽  
...  
Keyword(s):  
Atmospheric Turbulence ◽  
Channel Capacity ◽  
Communication System ◽  
Rayleigh Distribution ◽  
Intensity Modulation ◽  
Phase Shift Keying ◽  
Free Space Optical ◽  
Pointing Error ◽  
Shift Keying ◽  
Binary Phase Shift Keying

The improvement for hybrid radio frequency–free space optical (RF–FSO) communication system in wireless optical communications has acquired growing interests in recent years, but rarely improvement is based on hybrid modulation. Therefore, we conduct a research on end-to-end mixed RF–FSO system with the hybrid pulse position modulation–binary phase shift keying–subcarrier intensity modulation (PPM–BPSK–SIM) scheme. The RF link obeys Rayleigh distribution and the FSO link experiences Gamma–Gamma distribution. The average bit error rate (BER) for various PPM–BPSK–SIM schemes has been derived with consideration of atmospheric turbulence influence and pointing error condition. The outage probability and the average channel capacity of the system are discussed as well. Simulation results indicate that the pointing error aggravates the influence of atmospheric turbulence on the channel capacity, and the RF–FSO systematic performance is improved obviously while adopting PPM–BPSK–SIM under strong turbulence and severe pointing error conditions, especially, when the system average symbol length is greater than eight.

Maximum capacity antenna design for an indoor MIMO-UWB communication system

ISAPE2012 ◽  
2012 ◽  
Author(s):  
Yoke Leen Sit ◽  
Lars Reichardt ◽  
Ran Liu ◽  
Hao Liu ◽  
Thomas Zwick
Keyword(s):  
Communication System ◽  
Antenna Design ◽  
Maximum Capacity ◽  
Uwb Communication
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