Dynamic Frequency-Band Reallocation and Allocation: from Satellite-Based Communication Systems to Cognitive Radios |
| |
Authors: | Amir Eghbali Håkan Johansson Per Löwenborg Heinz G Göckler |
| |
Affiliation: | 1.Division of Electronics Systems, Department of Electrical Engineering,Link?ping University,Link?ping,Sweden;2.Digital Signal Processing Group (DISPO),Ruhr-Universit?t Bochum,Bochum,Germany |
| |
Abstract: | This paper discusses two approaches for the baseband processing part of cognitive radios. These approaches can be used depending
on the availability of (i) a composite signal comprising several user signals or, (ii) the individual user signals. The aim
is to introduce solutions which can support different bandwidths and center frequencies for a large set of users and at the
cost of simple modifications on the same hardware platform. Such structures have previously been used for satellite-based
communication systems and the paper aims to outline their possible applications in the context of cognitive radios. For this
purpose, dynamic frequencyband allocation (DFBA) and reallocation (DFBR) structures based on multirate building blocks are
introduced and their reconfigurability issues with respect to the required reconfigurability measures in cognitive radios
are discussed. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|