Flexible Radio: A Framework for Optimized Multimodal Operation via Dynamic Signal Design. Issue 3 (1st August 2005)

• Record Type: Journal Article
• Authors: Dagres, Ioannis; Zalonis, Andreas; Dimitriou, Nikos; Nikitopoulos, Konstantinos; Polydoros, Andreas
• Is Part Of: EURASIP journal on wireless communications and networking. Volume 2005:Issue 3(2005)
• Page Start: 284
• Page End: 297
• Publication Date: 2005-08-01
• Subjects: flexible radio -- reconfigurable transceivers -- adaptivity -- MIMO -- OFDM; Wireless communication systems -- Periodicals; Signal processing -- Periodicals; 621.38405
• DOI: 10.1155/WCN.2005.284
• Languages: English
• ISSNs: 1687-1499

Abstract

Abstract : The increasing need for multimodal terminals that adjust their configuration on the fly in order to meet the required quality of service (QoS), under various channel/system scenarios, creates the need for flexible architectures that are capable of performing such actions. The paper focuses on the concept of flexible/reconfigurable radio systems and especially on the elements of flexibility residing in the PHYsical layer (PHY). It introduces the various ways in which a reconfigurable transceiver can be used to provide multistandard capabilities, channel adaptivity, and user/service personalization. It describes specific tools developed within two IST projects aiming at such flexible transceiver architectures. Finally, a specific example of a mode-selection algorithmic architecture is presented which incorporates all the proposed tools and, therefore, illustrates a baseband flexibility mechanism.