DocumentCode
1748260
Title
Capacity increase in the downlink of spread spectrum systems through joint signal precoding
Author
Barreto, André Noll ; Fettweis, Gerhard
Author_Institution
IBM Zurich Res. Lab., Ruschlikon, Switzerland
Volume
4
fYear
2001
fDate
2001
Firstpage
1142
Abstract
In this paper we propose two precoding schemes for the downlink of CDMA systems which help reduce the multiuser interference by jointly precoding the transmitted signal based on knowledge of the downlink channel. These methods provide a substantial capacity increase without requiring complex multiuser detectors at the mobile terminals and can be applied for instance to TDD systems, which have symmetrical channels
Keywords
cellular radio; channel capacity; code division multiple access; combined source-channel coding; interference suppression; multiuser channels; radiofrequency interference; spread spectrum communication; time division multiplexing; CDMA; DS-CDMA; TDD systems; TDM; capacity; downlink; joint signal precoding; multiuser interference; spread spectrum systems; symmetrical channels; transmitted signal; Base stations; Channel state information; Downlink; Interference; Mobile communication; Multiaccess communication; Multipath channels; Multiuser detection; Spread spectrum communication; Transmitters;
fLanguage
English
Publisher
ieee
Conference_Titel
Communications, 2001. ICC 2001. IEEE International Conference on
Conference_Location
Helsinki
Print_ISBN
0-7803-7097-1
Type
conf
DOI
10.1109/ICC.2001.936841
Filename
936841
Link To Document