CDMA is usually a digital cellular technologies that utilizes spread spectrum strategies to permit multiple consumers to share precisely the same frequency band, allowing extra economical use with the obtainable spectrum.

This informative article analyzes functionality of HS-SFN for macro cell situation beneath diverse channels with distinct kind of schedulers by means of in depth procedure stage simulations and signifies that HS- SFN can improve throughput for UEs in softer handover area from forty% to 80% without lowering the overall efficiency.

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数字信号相乘，由于伪随机码速率快，扩展了传输带宽（伪随机码带宽远大于信号带宽，扩展信号频谱），在接收端，用相同的伪随机码序列

Two novel, multi-antenna receiver buildings for MIMO functioning in frequency-selective fading environments that provide a substantial reduction in complexity when compared to other MIMo equalizer constructions are formulated.

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While in the forward direction, radio indicators are transmitted by base stations (BTS's). Every single BTS is synchronized with a GPS receiver so transmissions are tightly controlled in time.

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For light-weight parcels, these fees are what typically make USPS a more economical option. Even so, write-up-billing carriers like UPS and FedEx want to stay competitive in all locations for high-volume merchants. Therefore, if they might see you supplying them lots of organization, They might give you all the more competitive rates throughout the board.   

Spread Spectrum and CDMA: EVDO employs spread spectrum procedures, get more info which suggests it spreads the data sign over an array of frequencies.

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The Business conducts interoperability testing and certification programs to ensure that gear and devices from different vendors can do the job together on a CDMA-dependent network.