Acta Metallurgica Sinica(English letters) ›› 2008, Vol. 15 ›› Issue (3): 41-46.doi:

• Wireless • Previous Articles     Next Articles

Multiuser subcarriers and bit allocation combining adaptive mapping for SC-FDMA system

ZHANG Yu-mei, XIN Yu, YANG Da-cheng   

  1. School of Telecommunication Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China
  • Received:2007-11-26 Revised:1900-01-01 Online:2008-09-30


In this article, a multiuser single carrier frequency division multiple access (SC-FDMA) system is considered, based on which an adaptive subcarrier and bit allocation algorithm is investigated. The algorithm has been used to achieve a subcarrier mapping mode in this system, which combines the advantages of single- and multi-carrier transmissions, such as, low peak to average power ratio, orthogonality of signals of different users, and low complexity. Simulation results show that it has a similar performance as that of the adaptive allocation algorithm in the orthogonal frequency division multiple (OFDM) system and the proposed mapping mode has a performance gain over the two existing mapping modes at the link level.

Key words:

adaptive subcarrier and bit allocation;SC-FDMA;subcarrier mapping modes;bit error ratio (BER)