Performance Evaluation of CSMA/CA on CC2530.
| Autor: | Wei Lu, 盧 瑋 |
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| Rok vydání: | 2015 |
| Druh dokumentu: | 學位論文 ; thesis |
| Popis: | 103 Wireless networks are widely popular in modern. The collision occurring is one of the reasons affecting the transmission efficiency. To mitigate the collision issue, the carrier sensing multiple access with collision avoidance (CSMA/CA) protocol is widely applied in wireless networks. IEEE 802.11 DCF protocol and IEEE 802.15.4 CSMA/CA protocol are the most well-known CSMA/CA based protocols. The primary difference between them is how carrier sensing is performed. Stations continuously sense the medium before transmissions in an IEEE 802.11 network, while stations in an IEEE 802.15.4 network only sense once after backoff operation. The thesis is mainly about software architecture design of the IEEE 802.11 DCF protocol on an IEEE 802.15.4 transceiver. Experiment results show that, without continuously sensing, the transmission failure probability of IEEE 802.15.4 CSMA/CA increases dramatically with the network size. Consequently, the IEEE 802.11 DCF protocol provides better performance in the packet loss probability and throughput than IEEE 802.15.4 CSMA/CA does. |
| Databáze: | Networked Digital Library of Theses & Dissertations |
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