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Abstract: Multiple access (MA) is a crucial part of any wireless system and refers to techniques that make use of the resource dimensions (e.g., time, frequency, power, antenna, code, and message) to ...

This is the final Newsround bulletin of 2025, but we'll be back on air on Monday 5 January 2026. In the meantime you can find all the latest stories on the Newsround website. The BFG brought to life ...