The search functionality is under construction.

IEICE TRANSACTIONS on Fundamentals

VLSI Implementation of an Interference Canceller Using Dual-Frame Processing for OFDM-IDMA Systems

Shingo YOSHIZAWA, Mai NOZAKI, Hiroshi TANIMOTO

  • Full Text Views

    0

  • Cite this

Summary :

Due to increasing demand for machine-to-machine (M2M) communication, simultaneous connections for many terminals are requested for current wireless communication systems. Interleave division multiple access (IDMA) has superior multiuser detection performance and attains high data transmission efficiency in multiuser communications. This paper describes the VLSI implementation of an interference canceller for OFDM-IDMA systems. The conventional architecture decreases a throughput in pipeline processing due to wait time occurring in interleave and deinterleave memory units. The proposed architecture adopts dual-frame processing to solve the problem of the wait time and achieves a high utilization ratio in pipeline stage operation. In the implementation results, the proposed architecture has reduced circuit area and power consumption by 25% and 41% for BPSK demodulation and 33% and 44% for QPSK demodulation compared with the conventional architecture on the same throughput condition.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E98-A No.3 pp.811-819
Publication Date
2015/03/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E98.A.811
Type of Manuscript
PAPER
Category
Digital Signal Processing

Authors

Shingo YOSHIZAWA
  Kitami Institute of Technology
Mai NOZAKI
  Kitami Institute of Technology
Hiroshi TANIMOTO
  Kitami Institute of Technology

Keyword