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IEEE 802.11n is an amendment to IEEE 802.11-2007 as amended by IEEE 802.11k-2008, IEEE 802.11r-2008, IEEE 802.11y-2008, and IEEE 802.11w-2009, and builds on previous 802.11 standards by adding a multiple-input multiple-output (MIMO) system and 40 MHz channels to the PHY (physical layer) and frame aggregation to the MAC layer.
This project compares the performance of three Wi-Fi protocols: IEEE 802.11ax (WiFi 6), IEEE 802.11ac (WiFi 5), and IEEE 802.11n (WiFi 4). The comparison is based on throughput, latency, and client capacity under various scenarios, using a simulation environment to emulate real-world performance.
802.11n Technology Goal: To dramatically increased the effective throughput of 802.11 devices available to end-user apps, not to simply build a radio capable of higher bit rates. Every aspect of 802.11 introducing overhead needs to be minimized as far as possible … Not only faster PHY layer, but also more efficient MAC layer
17 maj 2011 · Maximum throughput is achieved in Greenfield mode where only 802.11n clients exist. Factors such as Channel width, Guard Interval and Reduced IFS (RIFS) play a major role in the bandwidth. Table 1 and Table 2 show how these factors affect the bandwidth.
IEEE 802.11n należy do grupy standardów IEEE, które określają metody transmisji w bezprzewodowych sieciach lokalnych. Został zatwierdzony w roku 2009. Standard 802.11n pracuje z szybkościami 100,35; 252,88; 540 Mb/s przy pasmie częstotliwości 2.4 lub 5.0 GHz.
22 mar 2022 · 802.11n access points use High Throughput (HT) mode, also known as 'clean' mode (Greenfield mode), which assumes that no 802.11b/g devices using the same bandwidth are in operation nearby (in the coverage area).
27 sty 2009 · Sieci 802.11n są w pełni kompatybilne wstecz ze standardami 802.11a/b/g. Dlatego urządzenia pracujące w nowym standardzie można bez problemu wdrażać w istniejących sieciach bezprzewodowych opanowanych w większości przez standard 802.11g.
