Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity
Joint Authors
Tanzil, S. M. Shahrear
Hassan, MD. Zoheb
Bhuiyan, Tanveer Ahmed
Majumder, S. P.
Source
ISRN Communications and Networking
Issue
Vol. 2011, Issue 2011 (31 Dec. 2011), pp.1-14, 14 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2011-08-22
Country of Publication
Egypt
No. of Pages
14
Main Subjects
Abstract EN
This paper demonstrates an analytical approach on the bit error rate (BER) performance evaluation of a multi- carrier code division multiple access (MC-CDMA) communication link operating over terrestrial free space optical (FSO) channel considering effect of atmospheric turbulence The turbulence induced intensity fading is statistically modeled by Gamma-Gamma PDF (probability density function).
Bit error rate performance improvement is proposed using photo detector spatial diversity with Equal Gain Combining (EGC) and Turbo Coding.
Analysis is carried out with different bandwidth efficient phase shift keying (PSK) based sub-carrier intensity modulation (SIM) with direct detection.
Numerical simulation results of proposed analytical model indicate that, sub-carrier intensity modulation scheme; number of receiver photo detectors, turbo coding parameter and link length should be optimally engineered for ensuring system reliability.
It can be inferred from the simulation that, a reliable communication link (10-10 BER) can be established over a link length of 4 Km in strong turbulence fading condition using an array of 4 PIN photo detectors, 8-ary PSK based sub-carrier intensity modulation scheme and appropriate turbo coding parameter with an average 10.2 dB CINR (Carrier to Interference and Noise Ratio) requirement per photo detector.
Besides, more than 130 dB average CINR gain is also confirmed from BPSK modulated, un-coded SISO (single input-single output) system for maintaining targeted BER (10-10) in presence of strong turbulence fading.
American Psychological Association (APA)
Hassan, MD. Zoheb& Bhuiyan, Tanveer Ahmed& Tanzil, S. M. Shahrear& Majumder, S. P.. 2011. Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity. ISRN Communications and Networking،Vol. 2011, no. 2011, pp.1-14.
https://search.emarefa.net/detail/BIM-491646
Modern Language Association (MLA)
Hassan, MD. Zoheb…[et al.]. Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity. ISRN Communications and Networking No. 2011 (2011), pp.1-14.
https://search.emarefa.net/detail/BIM-491646
American Medical Association (AMA)
Hassan, MD. Zoheb& Bhuiyan, Tanveer Ahmed& Tanzil, S. M. Shahrear& Majumder, S. P.. Turbo-Coded MC-CDMA Communication Link over Strong Turbulence Fading Limited FSO Channel with Receiver Space Diversity. ISRN Communications and Networking. 2011. Vol. 2011, no. 2011, pp.1-14.
https://search.emarefa.net/detail/BIM-491646
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-491646