Explain Wi-Fi Multimedia Extensions (WME)?
- 1 Answers
- 1775 Views
- I also Faced
- E-Mail Answers
Answer / rajendra gupta
This uses a protocol called Enhanced Multimedia Distributed Control Access (EDCA), which is Extensions an enhanced version of the Distributed Control Function (DCF) defined in the original 802.11 MAC.
The enhanced part is that EDCA will define eight levels of access priority to the shared wireless channel. Like the original DCF, the EDCA access is a contention-based protocol that employs a set of waiting intervals and back-off timers designed to avoid collisions. However, with DCF all stations use the same values and hence have the same priority for transmitting on the channel.
Can u explain Wi-Fi Scheduled Multimedia (WSM)?
True consistent delay services can be provided with the optional Wi-Fi Scheduled Multimedia (WSM). WSM operates like the little used Point Control Function (PCF) defined with the original 802.11 MAC.
In WSM, the access point periodically broadcasts a control message that forces all stations to treat the channel as busy and not attempt to transmit. During that period, the access point polls each station that is defined for time sensitive service.
| Is This Answer Correct ? | 0 Yes | 0 No |
gsm call flow for MS to SMS? and GSM call flow fro MS to roaming MS?
3 Answers IMI Soft Engineering, Lupin, NSN,
whats the purpose of GSM device and what is GPRS
Did mobile moves from cell DCH to Cell FACH State if so..What information will pass between Cell FACH and Cell Dch states
How Routing Starts Up?
Explain crankback?
Which protocol does Q931 backhauling and what does it mean?
What is Next ?
In gsm we use msrn for routing but what parameter is used in the cdma for routing?
How to Set a Netmask under Solaris?
Which ISUP message iused by HLR while enquiring IN, in case of MO call of prepaid?
Which signaling protocols can be used for integration between CUCM and CUC?
What are Wi-Fi IEEE Standards?
Telecom Routers Switches 
