Single‐ and multi‐ carrier IDMA schemes with cyclic prefixing and zero padding techniques | Zendy

Guo Qinghua | Zendy; Yuan Xiaojun | Zendy; Ping Li | Zendy

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Single‐ and multi‐ carrier IDMA schemes with cyclic prefixing and zero padding techniques

Author(s) -

Guo Qinghua,

Yuan Xiaojun,

Ping Li

Publication year - 2008

Publication title -

european transactions on telecommunications

Language(s) - English

Resource type - Journals

eISSN - 1541-8251

pISSN - 1124-318X

DOI - 10.1002/ett.1266

Subject(s) - orthogonal frequency division multiplexing , padding , circulant matrix , computer science , interference (communication) , channel (broadcasting) , convergence (economics) , jamming , algorithm , electronic engineering , telecommunications , engineering , physics , computer security , economics , thermodynamics , economic growth

In this paper, we investigate single‐carrier (SC) and multi‐carrier IDMA schemes with cyclic prefixing (CP) and zero padding (ZP) techniques. These schemes are called SC‐IDMA‐CP, SC‐IDMA‐ZP, orthogonal frequency‐division multiplexing (OFDM)‐IDMA‐CP and OFDM‐IDMA‐ZP, respectively. By exploiting the circulant property of channel matrices, the multi‐user detection of these schemes can be efficiently realised with per‐user complexity independent of the number of users and the length of inter‐symbol interference (ISI) channels. We show the potential advantages of ZP‐based schemes in power efficiency and convergence speed. Simulation results are provided to compare the four schemes. Copyright © 2008 John Wiley & Sons, Ltd.

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