An uplink data transmission method based on wavelet packet transform coding in passive optical networks

作者：Li, Yuan; Wang, Yimeng; Li, Wei^*; Han, Jilong; He, Zhixue; Hu, Rong; Yu, Shaohua; Qi, Yang

来源：Photonic Network Communications, 2015, 29(1): 32-39.

DOI：10.1007/s11107-014-0476-9

• Passive optical network
• Electrical code division multiplexing
• Uplink data transmission
• Multi-level orthogonal coding
• Wavelet packet transform

A novel uplink data transmission method in electrical code division multiplexing passive optical networks is proposed, simulated and experimentally verified, in which each optical network unit (ONU) is assigned a special multi-level orthogonal code based on wavelet packet transform. Comparing with the normal bi-level orthogonal code by using Walsh code or Gold code, the proposed method can improve the bandwidth utilizations and reduce the optical beat noise. Simulation results show 31 ONUs, of which each data rate is 10 Gb/s and total rate is 310 Gb/s, can be transmitted 30 km. Three ONUs with each data at 622 Mb/s over 50-km single-mode fiber is experimentally demonstrated.

• 出版日期2015-2
• 单位华中科技大学; 华中师范大学