What Is IEEE Protocol?

IEEE 802 is also known as the LMSC (LAN / MAN Standards Committee). It is dedicated to studying the services and protocols defined in the physical and MAC layers of LANs and MANs, corresponding to the minimum of the OSI network reference model. Two layers (ie physical layer and data link layer).

IEEE 802

IEEE 802 also refers to a series of standards for local area networks and metropolitan area networks in the IEEE standard. Rather, the IEEE 802 standard is limited to transmitting networks of variable sizes.

The IEEE 802 series of standards are technical standards for local area networks and metropolitan areas developed by the IEEE 802 LAN / MAN standards committee. Among the most widely used are

IEEE 802 overview

The IEEE 802 committee was established in February 1980, and its mission is to develop standards for local area networks and metropolitan area networks. The services and protocols defined in IEEE 802 are limited to the lowest two layers of the OSI model [OSI Network Reference Model] (that is, the physical layer and the data link layer). In fact, IEEE 802 divides the data link layer of OSI into two sublayers, namely Logical Link Control (LLC) and Media Access Control (MAC), as shown below:

· data link layer

· Logical link control sublayer

· Media Access Control Sublayer

· Physical layer

The IEEE 802 series of standards are technical standards for local area networks and metropolitan areas developed by the IEEE 802 LAN / MAN standards committee. Among them, Ethernet, Token Ring, and Wireless LAN are the most widely used. Each sub-standard in this series of standards is the responsibility of a dedicated working group on the committee.

There are more than 20 subcommittees before the 802 committee.

IEEE 802 IEEE 802 IEEE 802 Existing Standard

IEEE 802.1: LAN Architecture, Addressing, Networking, and Networking

IEEE 802.1A: Overview and System Architecture

IEEE 802.1B: Network Management and Networking

IEEE 802.2: Definition of the logical link control sublayer (LLC).

IEEE 802.3: Ethernet Media Access Control Protocol (CSMA / CD) and physical layer technical specifications ^[1] .

IEEE 802.4: Token-Bus medium access control protocol and physical layer technical specifications.

IEEE 802.5: Token-Ring media access control protocol and physical layer technical specifications.

IEEE 802.6: Metropolitan Area Network Media Access Control Protocol DQDB (Distributed Queue Dual Bus) and physical layer technical specifications.

IEEE 802.7: Broadband Technical Advisory Group, providing technical advice on broadband networking.

IEEE 802.8: Optical fiber technology advisory group, providing technical advice on optical fiber networking.

IEEE 802.9: Local area network (IVD LAN) media access control protocol and physical layer technical specifications for integrated voice data.

IEEE 802.10: Network Security Technical Advisory Group, which defines authentication and encryption methods for network interoperability.

IEEE 802.11: Medium access control protocol and physical layer technical specifications for wireless local area networks (WLANs).

IEEE 802.11, 1997, the original standard (2Mbit / s, broadcast at 2.4GHz).

IEEE 802.11a, 1999, supplemented by the physical layer (54Mbit / s, broadcast at 5GHz).

IEEE 802.11b, 1999, supplemented by the physical layer (11Mbit / s broadcast at 2.4GHz).

IEEE 802.11c, 802.1D compliant MAC Layer Bridging.

IEEE 802.11d, adjusted according to the radio regulations of various countries.

IEEE 802.11e, support for Quality of Service (QoS).

IEEE 802.11f, the Inter-Access Point Protocol (IAPP) of the base station, was revoked by the IEEE in February 2006.

IEEE 802.11g, 2003, supplemented by the physical layer (54Mbit / s, broadcast at 2.4GHz).

IEEE 802.11h, 2004, adjustment of wireless coverage radius, indoor (outdoor) and outdoor (outdoor) channels (5GHz band).

IEEE 802.11i, 2004, Supplement to security aspects of wireless networks. .

IEEE 802.11j, 2004, an upgrade based on Japanese regulations.

IEEE 802.11l, reserved and not used.

IEEE 802.11m, maintenance standard; mutual exclusion and limits.

IEEE 802.11n, the improvement of higher transmission rate, the basic rate is increased to 72.2Mbit / s, double bandwidth 40MHz can be used, and the rate is increased to 150Mbit / s. Support Multi-Input Multi-Output (MIMO).

IEEE 802.11k, the protocol specification specifies the spectrum measurement specifications for wireless local area networks. The formulation of this specification reflects the wireless LAN's need for intelligent use of spectrum resources.

IEEE 802.11p, this communication protocol is mainly used for wireless communication of automotive electronics. It is set to extend from IEEE 802.11 to meet the relevant applications of Intelligent Transportation Systems (ITS).

IEEE 802.11ac, a potential successor to 802.11n, improves the transmission rate, when using multiple base stations, increases the wireless rate to at least 1Gbps and the single channel rate to at least 500Mbps. Use higher wireless bandwidth (80MHz-160MHz) (802.11n is only 40MHz), more MIMO streams (up to 8 streams), better modulation (QAM256). It is currently a draft standard and the official standard is expected to be launched later in 2012. Quantenna launched the world's first wireless router using 802.11ac on November 15, 2011. Broadcom also released its first 802.11ac chip on January 5, 2012.

IEEE 802.11ae-2012

IEEE 802.12: ^{[1] [2-3]} Demand-first media access control protocol (100VG AnyLAN).

IEEE 802.13: (unused) [unlucky number, no one wants to use it --- from "Computer Networks-Andrew S. Tanebaum" Page 63-1.6.2 The most influential organization in the international standard field

IEEE 802.14: Interactive television media access control protocol and network layer technical specifications using a cable modem.

IEEE 802.15: Wireless Personal Area Networks (WPAN) technical specifications using Bluetooth technology.

IEEE 802.15.1: wireless personal network.

IEEE 802.15.4: Low-speed wireless personal network

IEEE 802.16: Broadband wireless connection working group, develops 2 ~ 66GHz wireless access system air interface.

IEEE 802.17: Resilient Packet Ring (RPR) working group, formulated the single-sex packet ring network access control protocol and related standards

IEEE 802.18: Broadband Wireless LAN Technical Advisory Group (Radio Regulatory).

IEEE 802.19: Coexistence Advisory Group for Multiple Virtual Local Area Networks.

IEEE 802.20: Mobile Broadband Wireless Access (MBWA) working group to develop solutions for broadband wireless access networks.

IEEE 802.21: Media Independent Handover.

IEEE 802.22: ^[4] Wireless Regional Area Network

IEEE 802.23: Emergency Service Work Group