Mesh vs. Ad-Hoc Networks
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Ad-Hoc Networks
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WMN
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Multihop
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Multihop
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Nodes are wireless, possibly mobile |
Nodes are wireless, some mobile, some fixed
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May rely on infrastructure
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It relies on infrastructure |
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Most traffic is user-to-user
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Most traffic is user-to-gateway
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Mesh vs. Sensor Networks
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Wireless Sensor Networks
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WMN
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Bandwidth is limited (tens of kbps)
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Bandwidth is generous (>1Mbps)
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In most applications, fixed nodes
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Some nodes mobile, some fixed
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Energy efficiency is an issue
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Normally not energy limited
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Resource constrained
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Resources are not an issue
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Most traffic is user-to-gateway
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Most traffic is user-to-gateway
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WLAN Coverage
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802.11
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WMN
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Wiring Costs
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High
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Low
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Bandwidth
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Very Good
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Good
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Number of APs
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As needed
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Twice as many
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Cost of APs
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Low
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High
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Tags: 802.11, ad hoc network, sensor network, wireless mesh network, WMN
