![]() ![]() The purpose of the standard is to improve network throughput over the two previous standards- 802.11a and 802.11g-with a significant increase in the maximum net data rate from 54 Mbit/s to 72 Mbit/s with a single spatial stream in a 20 MHz channel, and 600 Mbit/s (slightly higher gross bit rate including for example error-correction codes, and slightly lower maximum throughput) with the use of four spatial streams at a channel width of 40 MHz. The use of MIMO- OFDM (orthogonal frequency division multiplexing) to increase the data rate while maintaining the same spectrum as 802.11a was first demonstrated by Airgo Networks. It standardized support for multiple-input multiple-output, frame aggregation, and security improvements, among other features, and can be used in the 2.4 GHz or 5 GHz frequency bands.Īs the first Wi-Fi standard that introduced MIMO (multiple-input and multiple-output) support, sometimes devices/systems that support 802.11n standard (or draft version of the standard) are being referred to as MIMO (Wi-Fi products), especially before the introduction of the next generation standard. The Wi-Fi Alliance has also retroactively labelled the technology for the standard as Wi-Fi 4. IEEE 802.11n-2009, or 802.11n, is a wireless-networking standard that uses multiple antennas to increase data rates. ![]() They do not exist in the official nomenclature. ![]() * Wi‑Fi 0, 1, 2, and 3 are named by retroactive inference. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |