Capacity Bounds of Finite Dimensional CDMA Systems with Power Allocation, Fading, and Near-Far Effects

Author

Kabir, P. ; Shafinia, M.H. ; Marvasti, Farokh

Author_Institution

ACRI & Electr. Eng. Dept., Sharif Univ. of Technol., Tehran, Iran

Volume

17

Issue

1

fYear

2013

fDate

Jan-13

Firstpage

15

Lastpage

18

Abstract

This paper deals with fading and/or near-far effects with or without power control on the evaluation of the sum capacity of finite dimensional Code Division Multiple Access (CDMA) systems. CDMA systems under consideration have binary or finite non-binary inputs and signature matrices. Important results of this paper are that the knowledge of the received power variations due to input power differences, fading and/or near-far effects can significantly improve the sum capacity.

Keywords

code division multiple access; fading channels; capacity bounds; fading effects; finite dimensional CDMA systems; finite dimensional code division multiple access; near-far effects; power allocation; received power variations; signature matrices; Channel capacity; Fading; Multiaccess communication; Power control; Receivers; Resource management; Upper bound; CDMA Capacity bounds; Overloaded CDMA systems; Power allocation; fading; near-far effects;

fLanguage

English

Journal_Title

Communications Letters, IEEE

Publisher

ieee

ISSN

1089-7798

Type

jour

DOI

10.1109/LCOMM.2012.120312.121042

Filename

6374736