Improving the Design Accuracy of GSM (EDGE) Products Improving the Design Accuracy of GSM (EDGE) Products Although third-generation (3G) wireless communication technology has begun to emerge, wireless system designers have not slowed down their efforts to improve the data processing capabilities of existing mobile phones and base stations. This positive spirit has led to the development of so-called 2.5G technology, which allows wireless communication operators to provide voice and high-speed data services to users without replacing the entire telecommunications infrastructure. This article focuses on the EDGE specification in 2.5G technology. One important technology that has aroused the interest of designers in 2.5G systems is the Enhanced Data Rate GSM (EDGE) specification. EDGE is a revolutionary technology for current GSM systems. It can provide data transmission rates of up to 384kbps, allowing the system to provide voice, data, Internet connections and other interconnect solutions simultaneously. |[pic] || |EDGE has attracted much attention for several reasons. The first is that it can provide high data transmission rates without building new infrastructure. Another important benefit is the full data rate feature. By providing data rates up to 384kbps, EDGE significantly increases the transmission speed of existing wireless communication systems, which currently have a maximum data rate of only 14.4kbps. In order to fit more data traffic into a fixed bandwidth, more complex signaling formats and receivers are required, making the design and testing of new systems more complex. To solve EDGE design problems, system developers turned to digital signal processing technology, which can be used to test whether the design meets the requirements before the receiver is manufactured. For receiver testing, the use of DSP software technology can accurately predict typical statistics of complex signals, such as error vector magnitude (EVM). To better illustrate this point, let\'s first study digital communication link simulation. Link simulation The most commonly used indicator for measuring the performance of digital communication systems is the average bit error rate (BER). In short, the average bit error rate is the probability that the transmitted data is received incorrectly at the receiving end. Channel interference may change a logical 0 to a logical 1, or vice versa. Generally speaking, this indicator...
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