Importance of Overlapped BSS issue in ac

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Presentation transcript:

Importance of Overlapped BSS issue in 802.11ac Month Year doc.: IEEE 802.11-yy/xxxxr0 May 14th, 2009 Importance of Overlapped BSS issue in 802.11ac Authors: Names John Doe, Some Company

Abstract of doc.:IEEE802.11-09/0565r0 Month Year doc.: IEEE 802.11-yy/xxxxr0 May 14th, 2009 Abstract of doc.:IEEE802.11-09/0565r0 Two possible attractive services are shown, i.e. IPTV and VoIP. Higher throughput is expected for IPTV while large number of 802.11ac devices is expected for VoIP. 80MHz BW is likely to be used in 11ac. Compared to 802.11n, we anticipate - Larger number of BSSs - Smaller number of frequency channels OBSS is more likely to happen in 802.11ac compared to 802.11n. Names John Doe, Some Company

Month Year doc.: IEEE 802.11-yy/xxxxr0 May 14th, 2009 FTTH service in Japan Number of FTTH subscribers is around 15 million and it is larger than that of ADSL subscribers. 35 FWA 30 CATV 25 DSL FTTH 20 Number of subscribers (million) 15 10 5 2002 2003 2004 2005 2006 2007 2008 Year Names John Doe, Some Company

Expected IPTV Market in Japan May 14th, 2009 Rapid increase in the number of IPTV subscribers is expected. There is a prediction that there will be more than 3 million IPTV subscribers in 2012. 1 2 3 2008 2009 2010 2011 2012 Number of subscribers (million) Year Source:ROA Group, Dec. 2008 Names

May 14th, 2009 Difference between currently provided services and future IPTV services TV Ethernet: wired Router ONU Network STB High throughput services usually assumes wired connection so far. Throughput evaluation of Ethernet is not necessary. . 802.11n/ac TV Router ONU Network STB Wireless connection should be assumed even for high throughput services. Throughput evaluation is needed to select WLAN for router. How to evaluate the throughput performance at wireless connection part? Names

How 802.11ac is used at home May 14th, 2009 High quality IPTV services are provided by wireless. We can expect large number of subscribers. WLAN equipments, which attain stable and high throughput in OBSS, are expected. AP 802.11ac AP Names

Month Year doc.: IEEE 802.11-yy/xxxxr0 May 14th, 2009 Conclusions High quality IPTV service is one of the attractive ones provided by 802.11ac devices. Many people will start to use WLAN for future network services. Service providers / operators need to evaluate real throughput to choose WLANs for their routers. Throughput evaluation in OBSS is needed to select WLANs for their routers. Names John Doe, Some Company

Questions ? May 14th, 2009 Month Year doc.: IEEE 802.11-yy/xxxxr0 Names John Doe, Some Company

Month Year doc.: IEEE 802.11-yy/xxxxr0 March 2009 May 14th, 2009 Straw Poll Do you think that it is important to see how 11ac devices behave in OBSS? Yes : No : Abstain : Slide 9 Minho Cheong, ETRI and Peter Loc, Ralink Names John Doe, Some Company