Flexible Transmission Scheme for 4G Wireless Systems with Multiple Antennas. Issue 3 (1st August 2005)

• Record Type: Journal Article
• Authors: Horlin, François; Petré, Frederik; Lopez-Estraviz, Eduardo; Naessens, Frederik; Van der Perre, Liesbet
• Is Part Of: EURASIP journal on wireless communications and networking. Volume 2005:Issue 3(2005)
• Page Start: 308
• Page End: 322
• Publication Date: 2005-08-01
• Subjects: code-division multiple access -- OFDM -- cyclic-prefix single carrier -- space-division multiplexing -- space-time block coding -- joint detection; Wireless communication systems -- Periodicals; Signal processing -- Periodicals; 621.38405
• DOI: 10.1155/WCN.2005.308
• Languages: English
• ISSNs: 1687-1499

Abstract

Abstract : New air interfaces are currently being developed to meet the high requirements of the emerging wireless communication systems. In this context, the combinations of the multicarrier (MC) and spread-spectrum (SS) technologies are promising candidates. In this paper, we propose a generic transmission scheme that allows to instantiate all the combinations of orthogonal frequency-division multiplexing (OFDM) and cyclic-prefixed single-carrier (SC) modulations with direct-sequence code-division multiple access (DS-CDMA). The generic transmission scheme is extended to integrate the space-division multiplexing (SDM) and the orthogonal space-time block coding (STBC). Based on a generalized matrix model, the linear frequency-domain minimum mean square error (MMSE) joint detector is derived. A mode selection strategy for up- and downlink is advised that efficiently trades off the cost of the mobile terminal and the achieved performance of a high-mobility cellular system. It is demonstrated that an adaptive transceiver that supports the proposed communication modes is necessary to track the changing communication conditions.