Báo cáo hóa học: " Low complexity antenna selection for V-BLAST systems with OSIC detection" docx

... performance for the MIMO systems with a sma ll number of antennas. In the sys- tems with a large number of antennas, we can achieve even higher complexity reduction without significant performance ... 7 RESEARCH Open Access Low complexity antenna selection for V-BLAST systems with OSIC detection Youngtaek Bae and Jungwoo Lee * Abstract Multiple-input multiple-outpu...

Ngày tải lên: 21/06/2014, 03:20

... spectral efficiency, none of the systems with AS outperforms the FC system with N receive antennas (and thus N RF chains). However, as for the RFC system with only n R antennas (and thus n R RF chains), ... incremental selection and the decremental selection algorithms in [7]. 3.2. FFT-based Selection. As for this soft selection scheme (e.g., [9]), a N-point FFT transformatio...

Ngày tải lên: 21/06/2014, 22:20

... parameter Q, without any performance penalty. In- deed, by comparing Figure 5 with Figure 6, it is evident that the W-MMSE-BLE with Q = 1 (i.e., that with 2|b 1 |/b 0 = 0.844 in Figure 5) outperforms ... 10.1155/ASP/2006/67404 Low- Complexity Banded Equalizers for OFDM Systems in Doppler Spread Channels Luca Rugini, 1 Paolo Banelli, 1 and Geert Leus 2 1 Department of Electronic a...

Ngày tải lên: 22/06/2014, 23:20

... algorithms with lower complexity are of interest for practical implementation. We develop a suboptimal algorithm called “max-max” to perform the above arg max operation with much lower complexity. ... optimal for single-channel systems such as TDMA. However, the same is not the case for multiple- channel systems. In this paper, we propose an opportunistic scheduling framework...

Ngày tải lên: 22/06/2014, 06:20

... for low a priori information. The soft interference canceller that combines symbol estimates is left unchanged. The overall approximate equalizer will thus consist of a device optimized for low ... performance bound that corre- sponds to the AWGN channel. Using a high complexity al- gorithm for the channel B does not seem very practical since the same performance can be obtained b...

Ngày tải lên: 22/06/2014, 22:20

... algorithms with lower complexity are of interest for practical implementation. We develop a suboptimal algorithm called “max-max” to perform the above arg max operation with much lower complexity. ... optimal for single-channel systems such as TDMA. However, the same is not the case for multiple- channel systems. In this paper, we propose an opportunistic scheduling framework...

Ngày tải lên: 22/06/2014, 19:20

... proposed quantizer with 1 or 2 bits. With the CQIs from K users, the BS constructs the selected user set and sends the feed- forward signal through the forward channels. The feed-forward signal contains information 4 using ... possible. Therefore, RBF system does not guarantee higher throughput than SUS-ee. SUS-ee with QBC or MESC has more codes for antenna combinations than RBF. F...

Ngày tải lên: 21/06/2014, 17:20

... performance of the JDGs with that of the IDGs. As shown in Figure 10 that the minimum value of MCER was 15.5% when using 69 IDGs. Therefore, JDGs outper- formed IDGs not only with a slightly lower ... set of JDGs for diagnosing SRBCTs and MDs with high prediction accuracies (96.9% for SRBCTs and 92.3% for MDs, resp.). These experimental results demonstrated that the two-step gene...

Ngày tải lên: 22/06/2014, 19:20

... inter- rupt or slow the viral life cycle. This did not occur, most likely because three proteins, essential for disulphide bond formation in L1R, are expressed as late proteins. Without G4L, A2.5L, ... is essential for the formation of intracellular mature virions (IMV) and plays a role in vir- ion morphogenesis [1-4]. In the absence of L1R, only immature virion particles are formed and p...

Ngày tải lên: 20/06/2014, 04:20

... uniform decay rate for viscoelastic problems with nonlinear boundary damping. Diff Integ Equ. 14,85–116 (2001) 9. Alves, CO, Cavalcanti, MM: On existence, uniform decay rates and blow up for ... sufficient condition for the initial data such that the corresponding solution blows up in finite time with arbitrary positive initial energy. Recently, for pro- blem (1.1) with g ≡ 0and...

Ngày tải lên: 21/06/2014, 02:20