Power Allocation for Multiple Access Systems with Practical Coding and Iterative Multi-User Detection

Author

Wang, Peng ; Ping, Li ; Liu, Lihai

Author_Institution

Student Member, IEEE, Department of Electronic Engineering, City University of Hong Kong, Hong Kong SAR. pwang@ee.cityu.edu.hk

Volume

11

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

4971

Lastpage

4976

Abstract

This paper is concerned with the power allocation problem for practically coded interleave-division multiple-access (IDMA) systems with iterative multi-user detection (MUD) over multiple access channels (MACs). Both Additive White Gaussian Noise (AWGN) and fading channels are considered. For AWGN channels, two power allocation methods based on linear programming are discussed and compared with an interior-point method (IPM). These techniques are extended to power allocation over fading channels. Numerical results show that, with power optimization, IDMA can achieve significant performance improvements over TDMA in fading environments.

Keywords

AWGN; Additive white noise; Fading; Forward error correction; Linear programming; Multiaccess communication; Multiple access interference; Multiuser detection; Power control; Transmitters; interleave-division multiple-access (IDMA); linear programming; multiple access channels (MACs); multiuser detection (MUD); power allocation;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2006. ICC '06. IEEE International Conference on

ISSN

8164-9547

Print_ISBN

1-4244-0355-3

Electronic_ISBN

8164-9547

Type

conf

DOI

10.1109/ICC.2006.255453

Filename

4024837