What Is Wlan Block Relay Between Clients; What Is Wmm; What Is Wlan Ack Timeout; What Is Modulation Coding Scheme (Mcs) - Edimax EW-7303APn v2 Quick Installation Manual

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5.29 What is WLAN Block Relay between Clients?

An Infrastructure Basic Service Set is a BSS with a component called an Access Point (AP). The

access point provides a local relay function for the BSS. All stations in the BSS communicate with the

access point and no longer communicate directly. All frames are relayed between stations by the access

point.

This local relay function effectively doubles the range of the IBSS.

WMM is based on a subset of the IEEE 802.11e WLAN QoS draft standard. WMM adds prioritized

capabilities to Wi-Fi networks and optimizes their performance when multiple concurring applications,

each with different latency and throughput requirements, compete for network resources. By using

WMM, end-user satisfaction is maintained in a wider variety of environments and traffic conditions.

WMM makes it possible for home network users and enterprise network managers to decide which

data streams are most important and assign them a higher traffic priority.

ACK frame has to receive ACK timeout frame. If remote does not receive in specified period, it will be

retransmitted.

MCS is Wireless link data rate for 802.11n. The throughput/range performance of an AP will depend

on its implementation of coding schemes. MCS includes variables such as the number of spatial

streams modulation, and the data rate on each stream. Radios establishing and maintaining a link must

automatically negotiate the optimum MCS based on channel conditions and then continuously adjust

the selection of MCS as conditions change due to interference, motion, fading, and other events.

Every 802.11 packet, no matter how small, has a fixed amount of overhead associated with it. Frame

Aggregation combines multiple smaller packets together to form one larger packet. The larger packet

can be sent without the overhead of the individual packets. This technique helps improve the efficiency

of the 802.11n radio allowing more end user data to be sent in a given time.

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