WiFoo..The.Secrets.of.Wireless.Hacking [Electronic resources] نسخه متنی

M

MAC

Media Access Control. In a WLAN network card, MAC is a radio controller protocol. It corresponds to the ISO network model's Layer 2 (data link layer). The IEEE 802.11 standard specifies the MAC protocol for medium sharing, packet formats and addressing, and error detection.

MAN

metropolitan-area network. Similar to a LAN, but typically over a larger area such as a city.

MHz

megahertz. A unit of measure for frequency equal to one million cycles per second.

MIB

Management Information Base. A collection of network operational information residing in a virtual store that may be accessed, typically through an SNMP-compliant system, for analysis.

microwave

Usually refers to all radio frequencies above 2 GHz or so.

mini-PCI

miniature Peripheral Component Interconnect. A standard developed by Intel Corporation that defines a method to connect high-speed peripherals to a system. The WLAN radio inside the Cisco 1100 Series AP is a mini-PCI radio.

modulate

To vary the amplitude, frequency, or phase of an RF wave in accordance with the information to be conveyed.

modulation

Process by which the characteristics of electrical signals are transformed to represent information.

multipath distortion

Caused by the transmitted signal reaching the receiver via more than one path. A common cause is reflected signals bouncing off metal objects in a room. The reflected signal (having traveled farther) reaches the antenna at a slightly later time period, mixing with the original signal and causing interference.

multipoint

A communications circuit interconnecting several nodes (usually more than two).