Bit Error Ratio or Channel Capacity: Which metric should I use? [Frequently Asked Questions]

Опубликовано: 10 Октябрь 2024
на канале: Wireless Future

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Professor Emil Björnson (KTH, Sweden) answers the question "Bit Error Ratio (BER) or Channel Capacity: Which metric should I use?", which he has received repeatedly in emails, on his blog, and in comments on this YouTube channel. The background to the question is that the BER is often considered in basic communication textbooks, while research papers often consider the capacity metric. The short answer is that practical systems are designed to achieve a very small BER; thus, the important thing is how many bits per second can be transferred while achieving that. The channel capacity is a good predictor of that. Emil explains these basic concepts in an accessible manner.

Intro music: Quiet Calculation by Joseph McDade.