The Effect of Carrier Sense Range and Frame Size on IEEE 802.11 Based Multi-hop Networks
碩士 === 國立中正大學 === 電機工程研究所 === 90 === In recent years there has been an increasing trend toward wireless communications. Wireless communication networks are gaining special interest as they provide flexibility and convenience. Much research has focused on one kind of multi-hop ad hoc wirel...
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| Format: | Others |
| Language: | en_US |
| Published: |
2002
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| Online Access: | http://ndltd.ncl.edu.tw/handle/94097916747338627813 |
| Summary: | 碩士 === 國立中正大學 === 電機工程研究所 === 90 === In recent years there has been an increasing trend toward wireless communications. Wireless communication networks are gaining special interest as they provide flexibility and convenience. Much research has focused on one kind of multi-hop ad hoc wireless networks where there is no stationary infrastructure, such as a base station, and nodes communicate with each other through other mobile nodes. It may work together with the existing mobile cellular system to extend the communication coverage.
In a wireless environment, there are the inherent fading and
interference problems. The hidden node problem is a unique
interference phenomenon in wireless multi-hop networks. IEEE
802.11 is a wireless LAN standard which defines a DCF mechanism
that may be used in a multi-hop networks. This thesis work
analyzes the throughput of a wireless multi-hop network when the
IEEE 802.11 DCF mechanism is used as the MAC access scheme. We
discuss the hidden node problem and the exposed node problem when different carrier sense ranges and packet sizes are adopted in a multi-hop WLAN.
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