Multichannel Protocols in Wireless Local Area Networks

• Main Authors: Yung-Yuan Cheng, 鄭永遠
• Other Authors: Li-Ling Hung
• Format: Others
• Language: zh-TW
• Published: 2011
• Online Access: http://ndltd.ncl.edu.tw/handle/65503602034048714221

碩士 === 真理大學 === 資訊工程學系碩士班 === 99 === Using multichannel can enhance throughput in wireless network, but it may cause many problems, such as rendezvous, hidden terminal, as well as exposed terminal problems. This paper proposes two protocols based on home channel mechanism, for avoiding above mentioned problems. In our protocols, each node is equipped with an antenna and assigned a home channel. One protocol called Asynchronous Multichannel Protocol. Nodes in the network need not to synchronize, it can find receiver by channel transfer rules. Time synchronization is needed for the other protocol. The time interval is divided into control interval and data interval. In control interval, each receiver has an independent negotiation slot for communication. Hence, the collision of messages is reduced. Finally, those two protocols are shown that they will reduce the transmission time and prevents nodes from starvation.