An improved scheme based on log-likelihood-ratio for lattice reduction-aided MIMO detection
نویسندگان
چکیده
منابع مشابه
An Improved Lattice Reduction Aided Detection Scheme for MIMO-OFDM System
This paper proposes an efficient lattice-reduction-aided detection (LRD) scheme to improve the detection performance of MIMO-OFDM system. In this proposed scheme, V candidate symbols are considered at the first layer, and V probable streams are detected with LRD scheme according to the first detected V candidate symbols. Then, the most probable stream is selected through a ML test. Since the pr...
متن کاملSelective Demodulation Scheme Based on Log-Likelihood Ratio Threshold
This paper aims at designing a selective demodulation scheme based on Log-likelihood Ratio threshold (SDLT) instead of the conventional adaptive demodulation (ADM) scheme, by using rateless codes. The major difference is that the Log-likelihood ratio (LLR) threshold is identified as a key factor to control the demodulation rate, while the ADM uses decision region set (DRS) to adjust the bit rat...
متن کاملLattice-reduction-aided detection for MIMO-OFDM-CDM communication systems
Multiple input multiple output-orthogonal frequency division multiplexing-code division multiplexing (MIMO-OFDM-CDM) techniques are considered to improve the link reliability/spectral efficiency of very high data rate communication systems. In particular, lattice-reduction-aided receivers are proposed for MIMO-OFDM-CDM systems. Simulation results show that the proposed receivers significantly o...
متن کاملLattice Reduction-Aided Detection for Overloaded MIMO Using Slab Decoding
In this paper, we propose an overloaded multiple-input multiple-output (MIMO) signal detection scheme with slab decoding and lattice reduction (LR). The proposed scheme firstly splits the transmitted signal vector into two parts, the post-voting vector composed of the same number of signal elements as that of receive antennas, and the pre-voting vector composed of the remaining elements. Second...
متن کاملLattice Reduction Aided Detection Techniques for Mimo Systems
---------------------------------------------------------------------***--------------------------------------------------------------------Abstract A Multiple input multiple output (MIMO) technology is seen to provide the best solution to high data rate and reliable wireless communication. For the purpose of detection, Maximum Likelihood receivers are most optimal but highly complex especially...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: EURASIP Journal on Advances in Signal Processing
سال: 2016
ISSN: 1687-6180
DOI: 10.1186/s13634-016-0312-8