Abstract
The identification capacity region of the compound broadcast channel is determined under an average error criterion, where the sender has no channel state information. We give single-letter identification capacity formulas for discrete channels and multiple-input multiple-output Gaussian channels under an average input constraint. The capacity theorems apply to general discrete memoryless broadcast channels. This is in contrast to the transmission setting, where the capacity is only known for special cases, notably the degraded broadcast channel and the multipleinput multiple-output broadcast channel with private messages. Furthermore, the identification capacity region of the compound multiple-input multiple-output broadcast channel can be larger than the transmission capacity region. This is a departure from the single-user behavior of identification, since the identification capacity of a single-user channel equals the transmission capacity.
Original language | English |
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Pages (from-to) | 4178-4195 |
Number of pages | 18 |
Journal | IEEE Transactions on Information Theory |
Volume | 69 |
Issue number | 7 |
DOIs | |
State | Published - 1 Jul 2023 |
Keywords
- Identification capacity
- broadcast communication
- compound channels
- multiple-input multiple-output
All Science Journal Classification (ASJC) codes
- Information Systems
- Library and Information Sciences
- Computer Science Applications