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Conference Paper A New MIMO System for Gbps Transmission
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Authors
Yu Ro Lee, Min Ho Cheong, Seok Hyun Yoon, Sok-Kyu Lee
Issue Date
2007-09
Citation
Vehicular Technology Conference (VTC) 2007 (Fall), pp.442-446
Language
English
Type
Conference Paper
DOI
https://dx.doi.org/10.1109/VETECF.2007.104
Project Code
07MM1500, IMT-Advanced Radio Transmission Technology with Low Mobility, Bang Seung Chan
Abstract
In this paper, a receiver algorithm for an 8×8 MIMO system is considered for Giga-bps data transmission, in which the decoding complexity and latency are crucial factors for implementation of MIMO system with large number of transmit and receive antennae. To reduce computational complexity and the decoding latency, a 3-stage receiver algorithm is proposed. The MIMO receiver consists of multi-dimensional detection, partial interference cancellation and the weighted zero-forcing equalization, where the transmit antennae are divided into two group. The first group is encoded by a lower rate code and multi-dimensional search algorithm is used for demodulation and decoding, while the second group is encoded by higher rate code and weighted zero-forcing equalization is used. Once the first group is decoded successfully, they are cancelled out from the received vector for the decoding of the second group. The complexity and the error rate performance are investigated and compared with a well-known sphere decoding algorithm. © 2007 IEEE.
KSP Keywords
Computational complexity, Data transmission, Dimensional search, Error rate performance, MIMO receiver, MIMO system, Search Algorithm(GSA), Sphere decoding algorithm, Zero forcing(ZF), decoding complexity, multi-dimensional