Báo cáo hóa học: " Research Article Frequency Estimation in Iterative Interference Cancellation Applied to Multibeam Satellite Systems" pptx

... possible to keep large estimation windows to perform estimation in (7): us- ing the whole burst allows obtaining the minimum degra- dation. Clearly, this approach requires “accurate” single-user frequency ... 3 y K [n] Initial phase recovery Decoding Estimation of g K,. Interference cancellation  d (m) k [n] To b eam l,fork interfering on beam l y k [n] Initial phase reco...

Ngày tải lên: 22/06/2014, 19:20

... pages doi:10.1155/2008/851726 Research Article DOA Estimation in the Uplink of Multicarrier CDMA Systems Antonio A. D’Amico, Michele Morelli, and Luca Sanguinetti Department of Information Engineering, University ... is the segment index and R denotes the number of segments within the frame (the number of data blocks in each frame is N B = N s × R). Substituting (9) into (11), bear-...

Ngày tải lên: 22/06/2014, 19:20

... (dB) Downlink network MIMO Downlink conven- tional Uplink conven- tional Uplink network MIMO SINR margin CDF Figure 8: CDF of SINR margin with respect to AWGN channel. Finally, Figure 8 shows the CDF of the margin required in the users’ SINR ... analyzed. Finally, in [33], a combination of antenna tilting, interference avoidance, and interference suppression through base station coo...

Ngày tải lên: 21/06/2014, 19:20

... learning assessments. This helps instructors to improve teaching skills and to create better interaction between instructors and students. The survey statistics are 4 EURASIP Journal on Advances in ... different industries; (2) inviting local industry to participate in the planning and reviewing of undergraduate and graduate curric- ula; (3) improving the skills of students through b...

Ngày tải lên: 21/06/2014, 22:20

... lattice is indicated in pink. In blue, the Nyquist frequency of the 1/3 orthogonal grid is indicated. Since the Voronoi cell does not cover the complete Nyquist frequency range, slight aliasing in the ... reproduction in any medium, provided the original work is properly cited. 1. Introduction New developments in medical imaging modalities lead to ever increasing sizes in vo...

Ngày tải lên: 21/06/2014, 22:20

... v i /v i , while maintaining low bit precision. The dynamic scaling technique is unique to Square-Root MMSE detection. The preprocessing such as (12) cannot be applied to Squared MMSE detection since its ... is also quite superior to other detectors appearing in the recent literature. 5.1. MIMO detector overview and interface For each subcarrier, the inputs to the MIMO detector...

Ngày tải lên: 21/06/2014, 22:20

... spreading operation introduces some interference between the spreading sequences when orthogonality is not maintained. This interference will be herein referred to as self -interference (SI) instead ... cho- sen in the sequel in order to limit the SI. In this case, the frequency diversity is jointly exploited by the spreading com- ponent and the channel coding combined with b...

Ngày tải lên: 22/06/2014, 06:20

... proposed in the literature. In [7, 8], the authors proposed frequency estimators for a single complex sinusoid. In the case of modulated signals, many blind frequency offset estimation methods were introduced. In ... corresponding curve is also plotted in Figure 8. As we can see, initializing the input frequency to  f est and reducing the search interval as proposed (algor...

Ngày tải lên: 21/06/2014, 08:20

... δ 2 b k+k 0 . Substituting (12) into (8), we can achieve that the estimation error equals to β. Next, we make some approximations to simplify the argument operation in (13). Since the power of sinusoidal signal mainly ... additive white noise arises in many fields including radar, sonar, measurement, wireless communications, and speech pro- cessing [1–16]. For instance, frequency...

Ngày tải lên: 21/06/2014, 19:20

... signal -to- interference plus noise power ratio (SINR) is identical for EURASIP Journal on Advances in Signal Processing 5 In the case of CP-SC transmission, the transformed frequency- domain received ... Signal Processing Volume 2011, Article ID 575706, 12 pages doi:10.1155/2011/575706 Research Article Frequency- Domain Block Signal D etection with QRM-MLD for Training Sequence...

Ngày tải lên: 21/06/2014, 08:20