Abstract
An optimized vector-quantization-inspired signal constellation design (OVQ-SCD) suitable for multidimensional optical transport is proposed, in which signal constellation radii transformation function is optimized and near-uniform distribution of points is achieved. The proposed OVQ-SCD is used in a tandem with a hybrid multidimensional coded-modulation scheme employing Slepian sequences as electrical discrete-time basis functions, orthogonal prolate spheroidal wave functions as impulse responses of optical filters in orthogonal-division multiplexing, and spatial modes as optical continuous-time basis functions. It has been shown that the proposed multidimensional coded-modulation schemes based on OVQ-SCDs outperform corresponding counterparts and can be used to enable beyond 10 Pb/s serial optical transport over spatial division multiplexing (SDM) fibers as well as beyond 1 Pb/s transport over SMFs. The proposed OVQ-SCD-based hybrid multidimensional coded modulation scheme can simultaneously solve the problems related to the limited bandwidth of information-infrastructure, high energy consumption, and heterogeneity of network segments; while enabling elastic and dynamic bandwidth allocation.
| Original language | English (US) |
|---|---|
| Article number | 6877631 |
| Pages (from-to) | 3262-3273 |
| Number of pages | 12 |
| Journal | IEEE Transactions on Communications |
| Volume | 62 |
| Issue number | 9 |
| DOIs | |
| State | Published - Sep 1 2014 |
Keywords
- LDPCcoding
- Terabit optical Ethernet
- coded-modulation
- multidimensional signaling
- signal constellation design
ASJC Scopus subject areas
- Electrical and Electronic Engineering