IEEE 802.11ac (WiFi) – LDPC Decoder Applications

The main objective of IEEE 802.11ac is to increase the throughputs of the previous IEEE 802.11 standards. Compared to IEEE 802.11n, the draft of IEEE 802.11ac allows for eight antennas (11n: four), 256-QAM modulation (11n: 64-QAM), and channel bandwidths of up to 160 MHz (11n: 40 MHz). The changes in the standard allow for a theoretical throughput of up to 7 Gbit/s. The LDPC codes are the same as in IEEE 802.11n.

Standard	IEEE 802.11ac

Organization	IEEE
Publication	Draft
Documents	IEEE P802.11ac
Applications	Local and Metropolitan Area Networks (WLAN/WMAN)
IP Core	Creonic IEEE 802.11ac LDPC Decoder IP Core
LDPC Codes	12
	Block Length	Submatrix Size	Code Rates
	648	27	1/2, 2/3, 3/4, 5/6
	1296	54	1/2, 2/3, 3/4, 5/6
	1944	81	1/2, 2/3, 3/4, 5/6