BER and RSSI analysis-based frequency adaptive technique for radio frequency transceiver

Abstract

In worldwide, the industrial, scientific, and medical applications, the specific spectrum is allotted and called ISM bands. Among these ISM bands, the 915, 868, and 433 MHz bands are popularly used by many users for different applications. Moreover, these frequency bands are declared license free in most of the countries, it encourages many users to utilize this frequency bands, which causes these bands more crowded. The advancement in technologies also enables more applications to operate in these bands. To overcome all these drawbacks and to utilize the spectrum in efficient manner, the simple adaptive method is proposed in this paper. This adaptive method is developed to identify the interference free channel and configure the RF transceiver to new channel. In this new method, the vital parameters of a RF link, like BER, RSSI, are derived and based on these parameters; the quality of service is estimated. Based on the channel quality, the frequency band of operation is selected. This adaptive technique is demonstrated here by considering Chipcon CC1010 sub 1 GHz single-chip RF transceiver. The algorithm for this technique is implemented in MATLAB. Initially the FSK RF transceiver is modeled and quality of service estimation and RSSI sampling is integrated and simulated.