3 ms·
It is! But she's talking about "a channel with a fixed noise level". Making new antennae, changing current antennae, moving them closer, aiming them differentl
by johnklos 4y ago
It is! But she's talking about "a channel with a fixed noise level".
Making new antennae, changing current antennae, moving them closer, aiming them differently, replacing them with an ethernet cable are all ways of increasing effective bandwidth, but those are outside of what she's talking about.
- cycomanic 4y agoThe receiver is part of the channel. So if you do beamforming your power at the receiver is higher, i.e. your SNR is higher. Any other interpretation does not make sense, because it's completely irrelevant to the discussion.
- johnklos 4y agoSigh. The receiver is part of the channel. Exactly. Changing the parameters of the channel means you're no longer commenting on her statement - you're now making a new discussion. Her statement wasn't wrong, technically or otherwise, just because you can think of ways to increase information by changing parameters of the channel. I can think of ways to increase information, but absolutely none of them, suggested by you or by me, can change or invalidate her statement: "If you want to transfer more information through a channel with a fixed noise-level" Here, since this seems tough for you: "If you want to execute instructions more quickly in a CPU, you can increase the clock speed." You're saying, "but if you put in a new CPU that has higher IPC"...