Low SNR Capacity of Fading Channels with Peak and Average Power Constraints
| dc.creator | Sethuraman, Vignesh | |
| dc.creator | Hajek, Bruce | |
| dc.date | 2006-04-11 | |
| dc.date | 2006-04-13 | |
| dc.date.accessioned | 2026-07-07T08:16:29Z | |
| dc.date.available | 2026-07-07T08:16:29Z | |
| dc.description | Flat-fading channels that are correlated in time are considered under peak and average power constraints. For discrete-time channels, a new upper bound on the capacity per unit time is derived. A low SNR analysis of a full-scattering vector channel is used to derive a complimentary lower bound. Together, these bounds allow us to identify the exact scaling of channel capacity for a fixed peak to average ratio, as the average power converges to zero. The upper bound is also asymptotically tight as the average power converges to zero for a fixed peak power. For a continuous time infinite bandwidth channel, Viterbi identified the capacity for M-FSK modulation. Recently, Zhang and Laneman showed that the capacity can be achieved with non-bursty signaling (QPSK). An additional contribution of this paper is to obtain similar results under peak and average power constraints. | |
| dc.description | 13 pages, version without proofs submitted to ISIT 2006 | |
| dc.identifier | https://arxiv.org/abs/cs/0604049 | |
| dc.identifier | http://arxiv.org/abs/cs/0604049 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/133794 | |
| dc.subject | Information Theory | |
| dc.title | Low SNR Capacity of Fading Channels with Peak and Average Power Constraints | |
| dc.type | text |