ndth of a second. MIME (Multipurpose Internet Mail Extensions) An Internet standard that enables message to contain textual, binary, or arbitrarily formatted data. An advantage of MIME is that it encodes the data into an SMTP-compatible format. MIMO (multiple-input multiple-output) antenna An advanced antenna technology that can carry several times more data traffic than today's most advanced 3.5G networks. MIMO Glossary MIPS (million instructions per second) enables a network to quickly deliver multimedia content. Multiple antennas are used at both the transmitter and receiver and are combined at each end to minimize errors and optimize data speed. MIPS (million instructions per second) A measure of a computer's processor speed. MMD (Multimedia Domain) The 3GPP2 name for IMS, which provides the technological basis for the provision of mobile multimedia services in next-generation networks. MMDS (Multichannel Multipoint Distribution Service) A technique for supplying broadband access via a point-to-point microwave digital system. It operates in the 2GHz to 3GHz band and can cover a fairly large area (approximately 30 miles [48 km]). It provides great capac- ity in that it enables 150 channels. Also called wireless cable. (Multimedia Messaging Service) A presence-based technology for transmitting text messages and also multimedia content, such as images, audio, and video clips, over wireless networks, using WAP. MMW (millimeter wave) A technology that is often used in wireless local loops. MMW produces very narrow beams, called pencil beams. MMW usually covers the range between 10GHz and 300GHz. mobile earth station A radio transmitter and/or receiver situated on a ship, on a vehicle, on an aircraft, or in a briefcase that is used for satellite communications. Mobile IP An IETF standard that allows users to roam between IP networks without their mobile devices losing connections. Mobile IPv6 An enhancement to the Mobile IP technique that is being developed to improve mobile communications in certain circumstances 