Mapping Channel Estimation and MIMO Detection in LTE-Advanced on a Reconfigurable Cell Array

Summary, in English

This paper presents a flexible architecture suitable for performing both channel estimation and signal detection in a MIMO-OFDM downlink. Extensive hardware sharing between two tasks is achieved by algorithm and architecture co-design, where robust MMSE sliding window channel estimation and MMSE-based signal detection with symbol perturbation scheme are adopted. The proposed architecture is based on a coarse-grained reconfigurable cell array with fast context switching capabilities. High flexibility is provided by the architecture, which allows task-level resource sharing and dynamic adoption of different algorithms onto the same platform. Simulation and analysis results have confirmed the efficiency of the proposed design solution, where more than 75% hardware resources are reused between the adopted algorithms.

• Author: Chenxin Zhang; Liang Liu; Viktor Öwall
• Department/s: Department of Electrical and Information Technology; ELLIIT: the Linköping-Lund initiative on IT and mobile communication
• Publishing year: 2012
• Language: English
• Pages: 1799-1802
• Publication/Series: [Host publication title missing]
• Links: http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6271615&queryText%3DMapping+Channel+Estimation+and+MIMO+Detection+in+LTE-Advanced+on+a+Reconfigurable+Cell+Array; http://dx.doi.org/10.1109/ISCAS.2012.6271615
• Document type: Conference paper
• Publisher: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Topic: Electrical Engineering, Electronic Engineering, Information Engineering
• Conference name: IEEE International Symposium on Circuits and Systems (ISCAS), 2012
• Conference date: 2012-05-20 - 2012-05-23
• Status: Published
• Project: High Performance Embedded Computing; EIT_SOS VINNOVA Industrial Excellence Center - System Design on Silicon
• Research group: Digital ASIC
• ISBN/ISSN/Other: ISSN: 2158-1525; ISSN: 0271-4310