Dynamic channel bonding in multicarrier wireless networks
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United States of America Patent
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Feb 20, 2018
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app pub date -
Jul 9, 2014
filing date -
Jul 17, 2013
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Abstract
To address the inefficiency and unfairness issues in channel bonding, a dynamic channel bonding protocol is presented in which a node is allowed to start a transmission as long as a narrow channel is available and gradually increase channel width during transmission whenever a new narrow channel becomes available. The protocol aggregates all available narrow channels as one wide channel, removing the need of setting guard bands between contiguous narrow channels. A challenge in dynamic channel bonding is the communication over uncertain channels. To enable fast spectrum agreement between transmitter and receiver, a partial spectrum correlation method is introduced. When new channels become available, multiple nodes may contend for them. A compound preamble is designed to make collisions detectable in the frequency domain and a parallel bitwise arbitration mechanism is used to quickly resolve the collisions in the time domain.
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