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4. Wide area network performance
In this section, we'll be looking at 802.11 performance on networks that are more extensive than the full networks studied in the previous section. In wide-area networks, some mobiles are not within communication range of others, unlike in full-area networks.
However, the scenarios presented here will only involve single-hop communications, i.e. two mobiles seeking to communicate are within radio range. No multi-hop routing will be used. We will therefore study the impact of flow geography on throughput, using the DCF mode of 802.11.
4.1 Extended sharing of the radio medium
The carrier detection mechanism plays an important role in 802.11, since it determines whether the channel is free or not, and therefore whether it's possible...
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Wide area network performance
Performance of multi-hop wireless networks
Bibliography
Websites
TFA – The Technology for all wireless project http://www.tfa.rice.edu/
NITOS – NITOS Wireless Testbed http://nitlab.inf.uth.gr/NITlab/
Standards and norms
- Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications - IEEE Computer Society LAN MAN Standard Committee - 2012
- Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications for Low-Rate Wireless Personal Area Networks (LR-WPAN) - IEEE computer Society LAN MAN Standard Committee - 2011
Directory
Manufacturers – Suppliers – Distributors (non-exhaustive list)
Luceor WiMesh Systems http://www.luceor.com/produit.html
P2 Mobile Technologies Limited http://www.p2mt.com/
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