Title :
OFDM–IDMA for Uplink Transmission in Passive Optical Networks
Author :
Sánchez, C. ; Ortega, B. ; Capmany, J.
Author_Institution :
ITEAM Res. Inst., Univ. Politec. de Valencia, Valencia, Spain
Abstract :
In this paper, we propose the orthogonal frequency-division multiplexing-interleaved division multiplexing access (OFDM-IDMA) technique for passive optical networks (PONs). We evaluate the performance of such systems and compare it with the already proposed OFDM-Access (OFDMA) technique by means of the bit error rate versus received power for two different coding schemes and different number of iterations. Results show that OFDM-IDMA technique with an unequal power allocation distribution among the different optical network units (ONUs) offers similar performance to OFDMA when used with a simple convolutional code at an aggregated rate of 4 and 8 Gbits/s. Dynamic bandwidth allocation can be easily implemented with this technique.
Keywords :
bandwidth allocation; convolutional codes; error statistics; frequency division multiple access; passive optical networks; OFDM-IDMA; OFDMA technique; bit error rate; bit rate 4 Gbit/s; bit rate 8 Gbit/s; coding schemes; convolutional code; dynamic bandwidth allocation; interleaved division multiplexing access technique; optical network units; orthogonal frequency-division multiplexing access technique; passive optical networks; power allocation distribution; uplink transmission; Interference; OFDM; Optical attenuators; Optical receivers; Optical transmitters; Passive optical networks; OFDM-access (OFDMA); Orthogonal frequency-division multiplexing–Interleaved division multiplexing access (OFDM–IDMA); multiuser access medium technique; passive optical networks (PONs);
Journal_Title :
Photonics Journal, IEEE
DOI :
10.1109/JPHOT.2011.2177450
