Title :
Implementation of a High-Throughput and Area-Efficient MIMO Detector Based on Modified Dijkstra´s Search
Author :
Kim, Tae-Hwan ; Park, In-Cheol
Author_Institution :
Dept. of EE, KAIST, Daejeon, South Korea
Abstract :
This paper presents a VLSI implementation of a high-throughput and area-efficient MIMO detector. We propose a modified Dijkstra´s algorithm and a pre-calculation technique to improve the throughput by allowing overlapped processing. In addition, we propose a simple approximation of L2-norm to reduce the computational complexity without degrading the error performance noticeably. A MIMO detector based on the proposed algorithm is implemented using a 0.18-¿m CMOS technology, which occupies 0.49 mm2 with 25.IK equivalent gates and shows a throughput of over 300 Mbps.
Keywords :
MIMO communication; VLSI; approximation theory; computational complexity; VLSI implementation; area-efficient MIMO detector; computational complexity; high-throughput MIMO detector; modified Dijkstra search; overlapped processing; precalculation technique; simple approximation; CMOS technology; Degradation; Delay; Detectors; MIMO; Maximum likelihood decoding; Maximum likelihood detection; Signal processing algorithms; Throughput; Very large scale integration;
Conference_Titel :
Global Telecommunications Conference, 2009. GLOBECOM 2009. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-4148-8
DOI :
10.1109/GLOCOM.2009.5426187
