PMID- 30184923
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20180906
LR  - 20181023
IS  - 1094-4087 (Electronic)
IS  - 1094-4087 (Linking)
VI  - 26
IP  - 18
DP  - 2018 Sep 3
TI  - Multi-user access in wireless optical communication system.
PG  - 22658-22673
LID - 10.1364/OE.26.022658 [doi]
AB  - In this paper, a multipoint-to-point system consisting K users and a central node 
      over wireless optical communication (WOC) channel is analyzed. The scenario 
      focused on is that there is simultaneous communication from a number of users to 
      the central node. As a powerful solution, we utilize non-orthogonal multiple 
      access (NOMA) technique in the system. Although the superiority of NOMA in radio 
      frequency (RF) system has been greatly considered, the NOMA in WOC still needs 
      further research due to the special features of WOC, especially the non-broadcast 
      nature of optical beam and the vulnerable turbulence channel. With the special 
      features of WOC in mind, system is evaluated in terms of outage probability, bit 
      error rate and ergodic sum rate. In addition, we theoretically prove that NOMA 
      outperforms orthogonal multiple access (OMA), and the performance gain increases 
      with the increase of turbulence strength. Hence, NOMA is more suitable for WOC, 
      especially in strong turbulence channel. Moreover, we also analyze the user 
      pairing scheme. Monte Carlo simulations have been done, which match quite well 
      with the theoretical analysis.
FAU - Li, Ruijie
AU  - Li R
FAU - Dang, Anhong
AU  - Dang A
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Opt Express
JT  - Optics express
JID - 101137103
EDAT- 2018/09/07 06:00
MHDA- 2018/09/07 06:01
CRDT- 2018/09/07 06:00
PHST- 2018/09/07 06:00 [entrez]
PHST- 2018/09/07 06:00 [pubmed]
PHST- 2018/09/07 06:01 [medline]
AID - 396319 [pii]
AID - 10.1364/OE.26.022658 [doi]
PST - ppublish
SO  - Opt Express. 2018 Sep 3;26(18):22658-22673. doi: 10.1364/OE.26.022658.