DPSK (Differential Phase Shift Keying)

A modulation technique in which each 1 bit triggers a

phase shift of 180 degrees, but 0 bits have no effect. A number of applications specify various PSK techniques. For example,Wi-Fi5 (802.11a) wireless local area network (WLAN) standards specify binary phase shift keying (BPSK) at 6 Mbps and quaternary phase shift keying (QPSK) at 12 Mbps. See also BPSK, modulation, phase, PSK, QPSK, and WLAN.

• MTS (Message Telecommunications Service)
• MTSO (Mobile Telephone Switching Office or Mobile Traffic Switching Office)
• MTS/WATS Decision (Message Telecommunications Service/ Wide Area Telecommunica-
• MTTR (Mean Time To Repair)
• MTU
• MUA (Mail User Agent)
• mu-law (µ-law)
• multicast
• multicast address
• Multichannel Multipoint Distribution Services (MMDS)
• multi-dwelling unit (MDU)
• multi-level transition (MLT)
• multilink frame relay (MFR)
• Multilink Point-to-Point Protocol (MPPP)
• Multilink PPP (Multilink Point-to-Point Protocol)
• multilocation extension dialing
• multimedia
• multimedia conference
• multimedia messaging
• multimedia messaging
• Multimedia Messaging Service (MMS)
• Multimedia Messaging Service (MMS)
• multimode fiber (MMF)
• multipath fading
• multipath interference (MPI)