Communication channel characteristics on
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The wireless channel is susceptible to a variety of transmission impediments such as path loss, interferenceand blockage. These factors restrict the range, data rate, and the reliability of the wireless transmission.
Types of Paths
The extent to which these factors affect the transmission depends upon the environmental conditions and the mobility of the transmitter and receiver. The path followed by the signals to get to the receiver, are two types, such as −
Direct-path
The transmitted signal, when reaches the receiver directly, can be termed as a directpath and the components presents that are present in the signal are called as directpath components.
Multi-path
The transmitted signal when reaches the receiver, through different directions undergoing different phenomenon, such a path is termed as multi-path and the components of the transmitted signal are called as multi-path components.
They are reflected, diffracted and scattered by the environment, and arrive at the receiver shifted in amplitude, frequency and phase with respect to the direct path component.
Types of Paths
The extent to which these factors affect the transmission depends upon the environmental conditions and the mobility of the transmitter and receiver. The path followed by the signals to get to the receiver, are two types, such as −
Direct-path
The transmitted signal, when reaches the receiver directly, can be termed as a directpath and the components presents that are present in the signal are called as directpath components.
Multi-path
The transmitted signal when reaches the receiver, through different directions undergoing different phenomenon, such a path is termed as multi-path and the components of the transmitted signal are called as multi-path components.
They are reflected, diffracted and scattered by the environment, and arrive at the receiver shifted in amplitude, frequency and phase with respect to the direct path component.
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