MMSE Receiver for Multicarrier CDMA Overlay in Utra-Wideband Communications

Wong, Tat Tung and Wang, Jiangzhou (2005) MMSE Receiver for Multicarrier CDMA Overlay in Utra-Wideband Communications. IEEE Transactions on Vehicular Technology, 54 (2). pp. 603-614. ISSN 0018-9545 . (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

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Multicarrier direct-sequence code-division multiple-access (MC-CDMA) overlay has been proposed to be used for ultra-wide-band (UWB) communications. Interference reduction and interference suppression are the key issues for sharing the spectrum in harmony between the established narrow-band systems and the overlaid UWB system. In this paper, investigation is carried out on the use of compromising measures incorporated to the MC-CDMA overlay to meet these goals, as well as on their impacts to the involving parties. At the transmitter, interference reduction to the established narrow-band systems is done by using notch filters. A multipath Nakagami fading channel is assumed. At the receiver, the interference suppression from those narrow-band systems is fulfilled by minimum mean square error (MMSE) detection technique. Numerical results show that precombining MMSE with selective-maximal combining provides the UWB system with much better performance than the receiver made up of notch filter in cascade with code correlator.

Item Type: Article
Uncontrolled keywords: Minimum mean square error (MMSE) adaptive rake Nakagami fading multicarrier code-division multiple-access (CDMA) notch filter ultra-wide-band communications
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications
Divisions: Faculties > Science Technology and Medical Studies > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Yiqing Liang
Date Deposited: 12 Sep 2008 23:47
Last Modified: 11 Jun 2014 08:55
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