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MAC Layer Features of IEEE 802.16-2004 (Continued)
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| bet | 7/9 | | Sana | 27.09.2023 | | Hajmi | 1 Mb. | | #84785 |
Bog'liq WiMax-and-Broadband-accesstech 6. Mevali bog\' 2021, 12-amaliy, Avtosalon3, Toshmurodov A MB 3amaliy, Fizika fanidan sinfdan va darsdan tashqari ishlarni kompetensiya-fayllar.org, bibliofond.ru 891913, Galogenlar va ular birikmalarining qo‘llanilishi, 1, Ekonometrika 1-joriy, HAYOT FAOLIYATI XAVFSIZLIGI, 2.06-геометрия-ФД-2018, Dars ishlanma, Abduraxmonova Zebuniso ozgardi1MAC Layer Features of IEEE 802.16-2004 (Continued) | | | | | | | | | | | - • Enables highest data rates allowed by channel
- conditions, improving system capacity
| | | | | | - • Minimizes self interference
| 802.16e-2005 Standard (Mobile Wireless MAN) - Ratified in December, 2005
- It is an extension of the IEEE 802.16-2004 standard
- It covers MAC and PHY layers for Combined Fixed and Mobile Operation in Licensed Bands.
- It will enable a mobile user to keep their connection while moving at vehicular speed (75-93 miles/h).
WiMax Mobility Issues - Device availability is a major issue
- - Market introduction may be delayed
- - High initial costs will limit adoption growth
- In some markets spectrum availability is limited
- - Bands < 3 GHz is better suited for mobile access
- - Licenses for fixed WiMAX may not allow service provider to offer mobile services
- Current demand for WiMax is mostly for fixed services.
- - Underserved Regions, Developing Markets
WiMax Mobility Issues (Continued) - Demand for wireless data is growing, but still it is limited
- - Mobile operators may see need for a data-only technology when demand is higher
- - Demand may drive additional spectrum allocations for wireless mobile data service
- WiMax is not going to supplant other wireless technologies
- - It will not replace Wi-Fi in the LAN
- - Cellular technologies may still be needed for voice and data in the WAN
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