Please use this identifier to cite or link to this item:
|標題:||Analysis and architecture design of a downlink M-modification MC-CDMA system using the Tomlinson-Harashima precoding technique||作者:||Lin, K.H.
|關鍵字:||minimum mean-square error (MMSE);multicarrier code division multiple;access (MC-CDMA);precoding;Tomlinson - Harashima precoding (THP);zero;forcing (ZF);multicarrier cdma;performance||Project:||Ieee Transactions on Vehicular Technology||期刊/報告no：:||Ieee Transactions on Vehicular Technology, Volume 57, Issue 3, Page(s) 1387-1397.||摘要:||
This paper investigates the feasibility of applying Tomlinson - Harashima precoding (THP) to multicarrier code-division multiple-access (MC-CDMA) system downlinks, in which multiple-access interference and possible complexity in the mobile terminal (MT) are major burdens. A THP based on the minimum mean-square error (MMSE) criterion is also presented, making it possible to realize a low-complexity receiver at the MT. The hardware architecture of the MMSE THP with modified QR decomposition at the transmitter is presented, along with the required word length analyzed. Pipeline and parallel schemes are adopted to reduce the execution time. For a generic square matrix of order n for RQ decomposition, the required latency is 2n - 1 time units, which is based on the modified Gram - Schmidt algorithm.
|Appears in Collections:||期刊論文|
Show full item record
TAIR Related Article
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.