Download 802.11ac: A Survival Guide by Matthew Gast PDF

By Matthew Gast

The subsequent frontier for instant LANs is 802.11ac, a typical that raises throughput past one gigabit consistent with moment. This concise consultant offers in-depth info that can assist you plan for 802.11ac, with technical information on layout, community operations, deployment, and monitoring.

Author Matthew Gast—an professional who led the advance of 802.11-2012 and defense activity teams on the wireless Alliance—explains how 802.11ac won't merely bring up the rate of your community, yet its capability in addition. no matter if you must serve extra consumers together with your present point of throughput, or serve your current shopper load with greater throughput, 802.11ac is the answer. This e-book will get you started.

know how the 802.11ac protocol works to enhance the rate and means of a instant LAN
discover how beamforming raises pace skill via bettering hyperlink margin, and lays the basis for multi-user MIMO
find out how multi-user MIMO raises means via allowing an AP to ship information to a number of consumers simultaneously
Plan whilst and the way to improve your community to 802.11ac via comparing customer units, purposes, and community connections

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802.11ac: A Survival Guide

The subsequent frontier for instant LANs is 802. 11ac, a customary that raises throughput past one gigabit in keeping with moment. This concise consultant presents in-depth info that can assist you plan for 802. 11ac, with technical information on layout, community operations, deployment, and monitoring.

Author Matthew Gast—an specialist who led the improvement of 802. 11-2012 and protection activity teams on the wireless Alliance—explains how 802. 11ac won't in simple terms elevate the rate of your community, yet its skill to boot. no matter if you must serve extra consumers together with your present point of throughput, or serve your present consumer load with greater throughput, 802. 11ac is the answer. This booklet will get you started.

know the way the 802. 11ac protocol works to enhance the rate and skill of a instant LAN
discover how beamforming raises velocity skill by means of bettering hyperlink margin, and lays the root for multi-user MIMO
learn the way multi-user MIMO raises ability by means of allowing an AP to ship info to a number of consumers concurrently
Plan while and the way to improve your community to 802. 11ac through comparing customer units, functions, and community connections

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Extra info for 802.11ac: A Survival Guide

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There are 69 blocks of 6 bits, with 2 bits left over. 11ac task group elected not to add padding, and simply listed the resulting data rate as not valid. Roughly speaking, the rule for determining whether an MCS will be valid is that the number of coded bits per subcarrier must be an integer multiple of the number of encoding streams. 11n is that the MCS value is no longer tied to the number of spatial streams. 11n, MCS 0 and MCS 8 both use BPSK with R=1/2. 11ac, the MCS value is defined only as a modulation and code set, and no longer includes the number of spatial streams.

4 GHz band. Pilot carriers are a form of overhead used in OFDM, and they represent an overhead for the channel. In MIMO systems, a single pilot carrier can be more effective at assisting with the channel tuning operations. 11ac has almost a “bulk discount” effect with the wider channels. Table 2-1 identifies the OFDM carrier numbering and pilot channels. The range of the subcarriers defines the channel width itself. Each subcarrier has identical data-carrying capacity, and therefore, more is better.

Stream parsing. The stream parser takes the output of the FEC encoder and divides up the encoded bits between each spatial stream. For example, if there are two spatial streams, the stream parser will divide up the encoded bits and assign each of them to one of the spatial streams. At this point, the bits flowing from the stream parser to the interleaver are a spatial stream. Output from the stream parser is sent to the interleaver, which is the first component in the radio chain. 5. Segment parsing.

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