Channel Selection requirements for Bluetooth receivers using a simple demodulation algorithm
Roel Schiphorst, F.W. Hoeksema, Cornelis Herman Slump · 2001
Abstract—In our Software Defined Radio (SDR) project we combine two different types of standards, Bluetooth and HiperLAN/2, on one common hardware platform. SDR system research aims at the design, implementa-tion and deployment of flexible radio systems that are re-programmable and re-configurable by software. Goal of our project is to generate knowledge about de-signing the front end of an SDR system (from the antenna signal to the channel bit stream) where especially an ap-proach from both analog and digital perspective is essential. This paper discusses the channel selection requirements for the Bluetooth standard. The standard specifications specify only the power level of the interferers, the power level of the wanted signal and the maximum allowed Bit Error Rate (BER). In order to build a radio front-end, one has to know the required (channel) suppression of these interferers. From [1] it is known that the required SNR for a Blue-tooth demodulator is 21 dB, but by which value should interferers be suppressed? This paper will validate if the SNR value needs to be used for the suppression of adjacent channels. In order to answer this question a simulation model of a Bluetooth radio front-end is built.