Instant Messaging and Presence Protocol (IMPP)

HomePlug uses of a version of orthogonal frequency division multiplexing (OFDM) specially tailored for powerline environments. HomePlug 1.0 specifies 84 equally spaced subcarriers, within each of which several differential modulation techniques are employed. Security is through the 56-bit Data Encryption Standard (DES). See also Access BPL, bandwidth, BPL, broadband, DES, HomePlug, LAN, node, OFDM, PLC, and voltage.

• low-pass filter
• Low-Power Radio Service (LPRS)
• Low-Power Radio Service (LPRS)
• low-tier
• low-tier
• low voltage (LV)
• low-water-peak fiber (LWPF)
• LPC (Linear Predictive Coding)
• lpi (lines per inch)
• LPRS (Low-Power Radio Service)
• LRC (Longitudinal Redundancy Check)
• LRN (Location Routing Number)
• LSB (Least Significant Bit)
• LSP (Label Switched Path)
• LSR (Label Switching Router)
• Luddite
• LU (Logical Unit)
• luminance
• luminance
• luminance
• luminiferous ether
• luminous flux
• lumped amplification
• LUNI (LANE User-to-Network Interface)
• LV (Low Voltage)