The Methods toward Improving Communication Performance in Transparent Radio Frequency Signals

Table 1

Comparison of the proposed methods.

	Advantages	Disadvantages
Proposed first structure: listening to analog output pin	Data can be retrieved from the first packet. The communication speed is high. The microprocessor can perform other operations.	Some RF modules do not have this pin.
Proposed second structure: getting the average of the data output	The microprocessor can perform other operations. This structure can be used in each RF module.	Data cannot be retrieved in the first package. It can be taken in other packages. Therefore, the speed is low.
Proposed third structure: data compression with DPCM	The data size is reduced. More data can be sent in a packet. The speed of communication increases.	As the difference between the data increases, the compression ratio decreases. Software for communication is more difficult.
Proposed fourth structure: increasing the communication security	Data cannot be retrieved when data array corruption occurs during communication.	The data length increases by one byte. If data corruption occurs, data cannot be imported in the first package. The communication speed is reduced.