eprintid: 1139
rev_number: 2
eprint_status: archive
userid: 1
dir: disk0/00/00/11/39
datestamp: 2023-11-09 15:49:18
lastmod: 2023-11-09 15:49:18
status_changed: 2023-11-09 15:39:05
type: conference_item
metadata_visibility: show
creators_name: Kaushal, H.
creators_name: Jain, V.K.
creators_name: Kar, S.
title: Acquisition time for laser uplink communication to space-borne satellite using transmit diversity in atmospheric turbulence
ispublished: pub
keywords: Acquisition time; OOK; Q-PPM; Sub-carrier BPSK and QPSK; Transmit diversity, Atmospheric thermodynamics; Communication; Laser beams; Mergers and acquisitions; Modulation, Atmospheric turbulence
note: cited By 2; Conference of 2010 2nd International Conference on Future Computer and Communication, ICFCC 2010 ; Conference Date: 21 May 2010 Through 24 May 2010; Conference Code:81983
abstract: A laser beam propagating through a random medium such as atmosphere will experience irradiance fluctuations due to the presence of turbulence. The turbulence induced fading can be circumvented by implementing transmit diversity which involves the deployment of multiple laser transmitters at the ground station. In this paper, performance of laser uplink communication with transmit diversity in atmospheric turbulence channels has been analyzed in terms of acquisition time for coherent (sub-carrier BPSK and QPSK) and noncoherent (OOK and Q-PPM) modulation schemes. In the analysis, both uncorrelated and correlated uplink laser beams are considered. It has been observed that transmit diversity decreases the acquisition time in all the modulation schemes irrespective of turbulence strength. Sub-carrier BPSK gives the least acquisition time to acquire the space borne satellite among all the modulation schemes. In case of non-coherent modulation schemes, OOK gives slightly better results than 2-PPM but there is an improvement in the acquisition time of Q-PPM as the value of Q increases. ©2010 IEEE.
date: 2010
official_url: https://www.scopus.com/inward/record.uri?eid=2-s2.0-78049351036&doi=10.1109%2fICFCC.2010.5497311&partnerID=40&md5=cc32fbfe7a1039f102545ac6bb3f36ab
id_number: 10.1109/ICFCC.2010.5497311
full_text_status: none
publication: Proceedings of the 2010 2nd International Conference on Future Computer and Communication, ICFCC 2010
volume: 1
place_of_pub: Wuhan
pagerange: V1840-V1845
refereed: TRUE
isbn: 9781424458226
citation:   Kaushal, H. and Jain, V.K. and Kar, S.  (2010) Acquisition time for laser uplink communication to space-borne satellite using transmit diversity in atmospheric turbulence.  In: UNSPECIFIED.