Theoretical Analysis of the Energy Capture in Strictly Bandlimited Ultra-Wideband Channels
| dc.creator | Böcherer, Georg | |
| dc.creator | Bielefeld, Daniel | |
| dc.date | 2008-02-18 | |
| dc.date | 2008-08-07 | |
| dc.date.accessioned | 2026-07-07T09:54:52Z | |
| dc.date.available | 2026-07-07T09:54:52Z | |
| dc.description | The frequency selectivity of wireless communication channels can be characterized by the delay spread Ds of the channel impulse response. If the delay spread is small compared to the bandwidth W of the input signal, that is, Ds*W approximately equal to 1, the channel appears to be flat fading. For Ds*W >> 1, the channel appears to be frequency selective, which is usually the case for wideband signals. In the first case, small scale synchronization with a precision much higher than the sampling time T = 1/W is crucial. In this paper, it is shown by analytical means that this is different in the wideband regime. Here synchronization with a precision of T is sufficient and small scale synchronization cannot further increase the captured energy at the receiver. Simulation results show that this effect already occurs for W > 50MHz for the IEEE 802.15.4a channel model. | |
| dc.description | 5 pages. Changes from 2nd version: minor corrections. Essentially the paper to be presented at ISWCS 2008 in Reykjavik | |
| dc.identifier | https://arxiv.org/abs/0802.2476 | |
| dc.identifier | http://arxiv.org/abs/0802.2476 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/166479 | |
| dc.subject | Information Theory | |
| dc.title | Theoretical Analysis of the Energy Capture in Strictly Bandlimited Ultra-Wideband Channels | |
| dc.type | text |