TY - JOUR
T1 - LDPC-Coded OFDM for Heterogeneous Access Optical Networks
AU - Djordjevic, Ivan B.
AU - Batshon, Hussam G.
N1 - Funding Information:
Manuscript received May 5, 2010; revised May 27, 2010; accepted May 27, 2010. Date of publication May 28, 2010; date of current version June 22, 2010. This work was supported in part the National Science Foundation under the Integrative, Hybrid, and Complex Systems Grant 0725405. Corresponding author: I. B. Djordjevic (e-mail: [email protected]).
PY - 2010/8
Y1 - 2010/8
N2 - In this paper, we propose a heterogeneous optical access networking scenario, in which communication links between source and destination nodes are heterogeneous, composed of free-space optical, plastic optical fiber (POF), and indoor infrared (IR) links. To deal with bandwidth limitations of POF and IR links, a power-variable rate-adaptive low-density parity-check (LDPC)-coded orthogonal frequency division multiplexing (OFDM) scheme is used, while to deal with atmospheric turbulence, the spatial diversity is used. The rate-adaptive LDPC codes are designed using a modified progressive edge-growth (MPEG) algorithm. We show that with the proposed heterogeneous communication systems, we can deliver a high-speed optical signal (40 Gb/s and beyond) to an end-user.
AB - In this paper, we propose a heterogeneous optical access networking scenario, in which communication links between source and destination nodes are heterogeneous, composed of free-space optical, plastic optical fiber (POF), and indoor infrared (IR) links. To deal with bandwidth limitations of POF and IR links, a power-variable rate-adaptive low-density parity-check (LDPC)-coded orthogonal frequency division multiplexing (OFDM) scheme is used, while to deal with atmospheric turbulence, the spatial diversity is used. The rate-adaptive LDPC codes are designed using a modified progressive edge-growth (MPEG) algorithm. We show that with the proposed heterogeneous communication systems, we can deliver a high-speed optical signal (40 Gb/s and beyond) to an end-user.
KW - Heterogeneous optical networking
KW - access networks
KW - adaptive power loading
KW - low-density parity-check (LDPC) codes
KW - orthogonal frequency division multiplexing (OFDM)
KW - rate-adaptive coding
UR - http://www.scopus.com/inward/record.url?scp=85008058360&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85008058360&partnerID=8YFLogxK
U2 - 10.1109/JPHOT.2010.2051943
DO - 10.1109/JPHOT.2010.2051943
M3 - Article
AN - SCOPUS:85008058360
SN - 1943-0655
VL - 2
SP - 611
EP - 619
JO - IEEE Photonics Journal
JF - IEEE Photonics Journal
IS - 4
ER -