Sampling Frequency Selection Scheme for a Multiple Signal Receiver Using Undersampling
نویسنده
چکیده
A multi-mode terminal is required in order to offer users multiple communication services for ubiquitous communication and Software Defined Radio (SDR) technology has attracted considerable attention as a means of realizing a multi-mode terminal. In such a terminal, a multi-band receiver is required, since each communication service uses an individually specific frequency and bandwidth. It is also desirable to be able to utilize multiple communication services simultaneously at multi-mode terminals in order to offer various applications. Undersampling is a potential method allowing multi-band and multiple signals to be simultaneously received by selecting a suitable sampling frequency. An undersampling technique that can lower the sampling frequency for receiving two signals, compared with the conventional method has been proposed [1]. This paper presents a novel sampling frequency selection scheme, which improves the BER (Bit Error Rate) characteristics further at a multiple signal receiver using undersampling.
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