multipath fading การใช้

• CDMA signals are also resistant to multipath fading.
• Up to this time, antenna diversity had only been used to mitigate multipath fading.
• A receiver equipped with this new equalizer can track rapid multipath fading, and thus supports mobile reception.
• Multipath propagation can create internal destruction interferences of a wireless signal . known as "'Multipath Fading " '.
• The channel hopping mechanism of TSCH allows to overcome the impact of multipath fading by changing the communication carrier frequency for every transmission
• While it would not have helped signal strength, it would have reduced the incidence of interference and ( frequency-dependent ) multipath fading.
• This allows UWB to reap the benefits of relative immunity to multipath fading, unlike carrier-based systems which are subject to deep fading and intersymbol interference.
• The random component of the model entails representing multipath fading of the signal, which is caused by signals colliding with and reflecting off various obstacles such as buildings.
• The benefits of beamforming are to increase the received signal gain-by making signals emitted from different antennas add up constructively-and to reduce the multipath fading effect.
• DAB may offer more radio programmes over a specific spectrum than multipath fading for mobile listening, since DAB reception quality first degrades rapidly when the signal strength falls below a critical threshold, whereas FM reception quality degrades slowly with the decreasing signal.
• Though one of the cheapest and easiest methods to implement, its disadvantage is that it does not provide very good accuracy ( median of 2-4m ), because the RSSI measurements tend to fluctuate according to changes in the environment or multipath fading.
• Another feature of pulse-based UWB is that the pulses are very short ( less than 60 cm for a 500 MHz-wide pulse, less than 23 cm for a 1.3 GHz-bandwidth pulse )  so most signal reflections do not overlap the original pulse, and there is no multipath fading of narrowband signals.