Power Allocation for Practically Coded IDMA Systems over Broadcast Channels

Author

Wang, Peng ; Chen, Qi ; Ping, Li ; Liu, Lihai

Author_Institution

Dept. of Electron. Eng., City Univ. of Hong Kong, Kowloon

fYear

2006

fDate

22-26 Oct. 2006

Firstpage

673

Lastpage

677

Abstract

This paper presents a power allocation technique based on an interior-point method (IPM) for practically coded interleave-division multiple-access (IDMA) systems over broadcast channels. Numerical results show that the proposed technique is efficient and significant performance improvements (compared with orthogonal systems such as TDMA and FDMA) are achievable by applying iterative multi-user detection (MUD) to IDMA in fading channels, even with a fairly small number of simultaneous users. This finding has useful practical implications for broadcast systems

Keywords

broadcast channels; fading channels; interleaved codes; iterative methods; multi-access systems; multiuser detection; FDMA; TDMA; broadcast channels; fading channels; interior-point method; iterative multi-user detection; orthogonal systems; power allocation technique; practically coded IDMA systems; practically coded interleave-division multiple-access systems; Broadcasting; Conferences; Fading; Forward error correction; Frequency division multiaccess; Information theory; Multiaccess communication; Multiuser detection; Silicon carbide; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Information Theory Workshop, 2006. ITW '06 Chengdu. IEEE

Conference_Location

Chengdu

Print_ISBN

1-4244-0067-8

Electronic_ISBN

1-4244-0068-6

Type

conf

DOI

10.1109/ITW2.2006.323733

Filename

4119384