tailieunhanh - Báo cáo hóa học: " Research Article Application-Specific Instruction Set Processor Implementation of List Sphere Detector"

Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Research Article Application-Specific Instruction Set Processor Implementation of List Sphere Detector | Hindawi Publishing Corporation EURASIP Journal on Embedded Systems Volume 2007 Article ID 54173 14 pages doi 2007 54173 Research Article Application-Specific Instruction Set Processor Implementation of List Sphere Detector Juho Antikainen 1 Perttu Salmela 2 Olli Silven 1 Markku Juntti 1 Jarmo Takala 2 and Markus Myllyla1 1 Information Processing Laboratory and Centre for Wireless Communications University of Oulu 90014 Oulu Finland 2 Institute of Digital and Computer Systems Tampere University of Technology 33101 Tampere Finland Received 8 June 2007 Revised 18 October 2007 Accepted 12 November 2007 Recommended by Marco Platzner Multiple-input multiple-output MIMO technology enables higher transmission capacity without additional frequency spectrum and is becoming a part of many wireless system standards. Sphere detection has been introduced in MIMO systems to achieve maximum likelihood ML or near-ML estimation with reduced complexity. This paper reviews related work on sphere detector implementations and presents an application-specific instruction set processor ASIP implementation of K-best list sphere detector LSD using transport triggered architecture TTA . The implementation is based on using memory and heap data structure for symbol vector sorting. The design space is explored by presenting several variations of the implementation and comparing them with each other in terms of their latencies and hardware complexities. An early proposal for a parallelized architecture with a decoding throughput of approximately Mbps is presented Copyright 2007 Juho Antikainen et al. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. 1. INTRODUCTION Multiple-input multiple-output MIMO communications based on multiple transmit and receive antennas will be applied in several wireless communication system .