DS-CDMA Implementation With Iterative Multiple Access Interference Cancellation

作者：Dodd Russell^*; Schlegel Christian; Gaudet Vincent

来源：IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2013, 60(1): 222-231.

DOI：10.1109/TCSI.2012.2215784

• Digital circuits
• direct-sequence code-division multiple access
• field programmable gate arrays
• interference cancellation

In this paper an implementation of iterative joint detection for multiple access interference using direct-sequence code-division multiple-access (DS-CDMA) is presented. Results for multiple field programmable gate array (FPGA) platforms and multiple technology nodes for synthesized application specific integrated circuits (ASIC) are presented. The joint detection is performed using a generalized version of interleave-division multiple-access (IDMA) known as partition spreading (PS) CDMA. Decoding is performed using iterative methods from turbo and sum-product decoding. The synthesized ASIC system demonstrates a maximum aggregate throughput of 197 Mb/s for a fully loaded 50-user system, while the implemented FPGA 50-user system has a maximum aggregate throughput of 119 Mb/s.

• 出版日期2013-1