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COLLISION MITIGATION IN LOW-POWER, FREQUENCY-HOPPING, WIDE-AREA NETWORK
COLLISION MITIGATION IN LOW-POWER, FREQUENCY-HOPPING, WIDE-AREA NETWORK
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机译:低功耗,跳频,广域网的碰撞缓解
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摘要
A hopping spread-spectrum wireless network for loT applications operating in a predetermined frequency band, with mobile device that have unsynchronized local frequency references and receiving gateways that are capable of detecting whether modulated radio signals will collide in frequency in a collision time interval, and blanking the signals in the collision time. Preferably, the frequency band is subdivided into a sub-bands, and the mobile devices adapt the width of the sub-bands used for transmission based on a synchronization status indicative of the frequency error of the local frequency reference.
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