A 4 × 4 multiplier-divider-less K-best MIMO decoder up to 2.7 Gbps
نویسندگان
چکیده
This paper proposes a hardware architecture of Kbest-based 4× 4 MIMO decoder that supports up to 256-QAM. The novelties such as Direct Expansion, and 2D Sorter play important roles on reducing the complexity of the decoder. In addition, the most complex operators such as divider and multiplier are eliminated in this design. As compared to the previous works, the proposed decoder achieves the highest throughput (up to 2.7 Gbps), consumes the least power (56 mW), and obtains the best hardware efficiency(15.2 Mbps/Kgate).
منابع مشابه
A Novel Chaotic MIMO-OFDM System for Improved Performance in Future Cellular Wireless Networks
In recent years, the explosive growth of new generation wireless networks has spurred lot of research thrust particularly looking for a bandwidth efficient modulation and coding scheme. In this connection, researchers have recently turned up their attention towards chaotic communication systems and golden codes for its attractive benefits. This consequently had motivated us for two new proposal...
متن کاملDesign and Implementation of an Improved Soft - output MIMO Detector
Multiple-input multiple-output (MIMO) technique in communication system has been widely researched. Compared with single-input single-output (SISO) communication, its properties of higher throughput, more efficient spectrum and usage make it one of the most significant technology in modern wireless communications. In MIMO system, sphere detection is the fundamental part. The purpose of traditio...
متن کاملHardware Architecture of Complex K-best MIMO Decoder
This paper presents a hardware architecture of complex K-best Multiple Input Multiple Output (MIMO) decoder reducing the complexity of Maximum Likelihood (ML) detector. We develop a novel low-power VLSI design of complex K-best decoder for 8 × 8 MIMO and 64 QAM modulation scheme. Use of Schnorr-Euchner (SE) enumeration and a new parameter, Rlimit in the design reduce the complexity of calculati...
متن کاملA 2.78 mm2 65 nm CMOS gigabit MIMO iterative detection and decoding receiver
Iterative detection and decoding (IDD), combined with spatial-multiplexing multiple-inputmultiple-output (MIMO) transmission, is a key technique to improve spectral efficiency in wireless communications. In this paper we present the—to the best of our knowledge—first complete silicon implementation of a MIMO IDD receiver. MIMO detection is performed by a multi-core sphere decoder supporting up ...
متن کاملK-best Sphere Decoder Algorithm for Spatial Multiplexing Mimo Systems
To achieve high data rates, reliable data rate transmission and near capacity performance of next generation wireless communication systems iterative processing has been widely considered. However, such an efficient receiver design has been made significant challenge. In this paper, MIMO detection techniques have been investigated which achieves reliable data transmission with less computation ...
متن کامل