BIT ERROR ANALYSIS OF NEW GENERATION WIRELESS TRANSCEIVERS

 

There has been a spurt of activity in the development of digital wireless transceivers especially those

operating in the ISM (Industry Scientific Medical) bands. This is attributed to the fact that wireless systems have

become more reliable, compact and easy to develop than ever before, leading to a well-perceived ubiquity. Most

manufacturers do not document the error related performance and characteristics of their devices, thus entailing a detailed

analysis by the developer or the user. In this paper we highlight tests to measure the bit error related performance of

these new generation transceivers, with special emphasis on the TRF 6900A [3] transceiver from Texas Instruments, a

popular binary FSK (Frequency Shift Keying) device. The test bed consists of a wireless modem based on the

transceiver, and a personal computer executing a ‘C’ language code for baseband control and data source - sink, in

order to test the device in various configurations and conditions. Our test analyses bit error rate and tries to

highlight its relationship to various parameters such as attenuation, interference, occlusions, and modulation index,

which in turn helps to evaluate the performance of a wireless device. This method can be easily extended to evaluate

various other similar wireless transceivers offered in the market.

Keywords – Wireless transceiver, bit error test, wireless modem, FSK.

 

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