Novel block decision feedback equalizers for MIMO-OFDM used in UTRA LTE for UTRA LTE
The long term evolution of UMTS Terrestrial Radio Access, abbreviated as UTRA LTE, will use OFDM (orthogonal frequency division multiplexing) combined with MIMO (multiple-input multiple-output), termed MIMO-OFDM. And spatial multiplexing MIMO scheme is deployed in UTRA LTE downlink to provide high data rates. Considering the detection of spatial multiplexing signals, well-known techniques such as the V-BLAST schemes provide an attractive error ratio performance, but still a considerable signal processing effort, which merits further research towards less complex schemes. In this communication, the authors will propose a novel set of detection techniques which use intrinsic block decision feedback equalization (BDFE) characteristics instead of successive interference cancellation (SIC). Both zero-forcing (ZF) and minimum mean square error (MMSE) schemes based BDFE are proposed, termed as MIMO-BDFE-ZF and MIMO-BDFE-MMSE. Setting out from a novel general model for the evaluation of the signal-to-noise ratio (SNR) at the data detector output, the authors will evaluate the error ratio performance of the novel MIMO-BDFE and provide comparison results. It will be shown that the porposed scheme provide an attractive performance at a lower realization complexity.
MIMO OFDM (Orthogonal Frequency Division Multiplezing) spatial multiplezing successive interference cancellation UMTS UTRA LTE V-BLAST
Zijian Bai Christoph Spiegel Guido H. Bruck Christian Drewes Jens Berkmann Bertram Gunzelmann Tobias Scholand Peter Jung
Universit(a)t Duisburg-Essen, Lehrstuhl für KommunikationsTechnik, 47048 Duisburg, Germany Infineon Technologies AG, Am Campeon 1-12, 85579 Neubiberg, Germany Infineon Technologies AG, Düsseldorfer Landstra(a)e 401, 47259 Duisburg, Germany
国际会议
The 6th International Conference on Mining Science & Technology ICMST 2009(第六届国际矿业科学技术大会)
徐州
英文
1-10
2009-10-18（万方平台首次上网日期，不代表论文的发表时间）