words per minute
7
SatishYadav1987
00:00
Speed
occurs when the medium through which the wave travels consists of objects with
The received signal by a node is a superposition of time-shifted and attenuated versions of the ransmitted signals the received signal varies with time .The time varying signals (time varying channel) phenomenon also known as multipath propagation. The rate of variation of channel is determined by the coherence time of the hannel Coherence time is defined as time within which When a node’s received signal strength drops below a certain threshold the node is said to be in fade .Handshaking is widely used strategy to ensure the link quality is good enough for data communication. A successful handshake between a sender and a receiver (small message) indicates a good communication link.
An exposed node is one that is within the range of the sender but out of range of destination .when a node’s received signal strength drops below a certain threshold the node is said to be in fade .Handshaking is widely used strategy to ensure the link quality is good enough for data communication. A successful handshake between a sender and a receiver (small message) indicates a good communication link.
In theory C can therefore have a parallel transmission with any node that cannot hear the transmission from B, i.e. out of range of B. But C will not transmit to any node because its an exposed node. Exposed nodes waste bandwidth.
occurs when the medium through which the wave travels consists of objects with the received signal by a node is a superposition of time-shifted and attenuated versions of the ransmitted signals the received signal varies with time .The time varying signals (time varying channel) phenomenon also known as multipath propagation. The rate of variation of channel is determined by the coherence time of the hannel Coherence time is defined as time within which When a node’s received signal strength drops below a certain threshold the node is said to be in fade .Handshaking is widely used strategy to ensure the link quality is good enough for data communication. A successful handshake between a sender and a receiver (small message) indicates a good communication link.