Báo cáo hóa học: "Research Article A Practical, Hardware Friendly MMSE Detector for MIMO-OFDM-Based Systems" pptx

... Corporation EURASIP Journal on Advances in Signal Processing Volume 2008, Article ID 267460, 14 pages doi:10.1155/2008/267460 Research Article A Practical, Hardware Friendly MMSE Detec tor for MIMO-OFDM-Based ... implementation; (c) a dynamic scaling algorithm that enhances numerical stability; and (d) an aggressive time-shared VLSI architecture. The above tech- niques are...

Ngày tải lên: 21/06/2014, 22:20

... receiving data to obtain some statistical information such as cyclostationarity induced by the cyclic prefix. Therefore, blind channel estimation methods are not suitable for applications with fast varying ... conventional LMMSE channel estimation requires the channel statistics, that is, the channel auto- correlation matrix in frequency domain and SNR, which are often unavailable in practic...

Ngày tải lên: 21/06/2014, 22:20

... captured, thus obtaining a set of images as observations. If a Lambertian surface is assumed, the image irradiance equation relating the surface gradients and image intensity can be written as E(x, ... the authors use a calibrating object of known shape and constant albedo to establish a nonlinear mapping between the image irradiance and shape of the object in the form of a lookup t...

Ngày tải lên: 21/06/2014, 22:20

... the bigram-PLSA models an unfair advantage by allowing them to adapt the model parameters to the test data. Nevertheless, we applied it to avoid overfitting. To have a valid comparison, the PLSA and ... in language modeling. Latent topic modeling approaches such as Latent Semantic Analysis (LSA) [1, 2], Probabilistic Latent Semantic Analysis (PLSA) [3], and Latent Dirichlet Allocation (LDA)...

Ngày tải lên: 21/06/2014, 08:20

... subsample approach is feasible and scalable for either hardware or software implementation. The proposed approach is not limited for FSBM, but valid for all kinds of FBMAs. The proposed approach ... ΔPSNRY versus subsample ratio based on Ta bl e 7 and shows that all tested sequences can satisfy to maintain the visual quality 2 EURASIP Journal on Advances in Signal Processing called th...

Ngày tải lên: 21/06/2014, 08:20

... cooperate with people as capable partners, that are able to learn from natural human instruction and that are intuitive and engaging for people to interact with, but that are also able to simultaneously ... have implemented two basic behaviors in this stage: a visual natural landmark detector and a human gesture recognition behavior. These behaviors are the responsible for provide n...

Ngày tải lên: 21/06/2014, 09:20

... Speed-Adaptive Media-Data Encryption (SAME) Statistical char acteristics of compressed audio/video data are dramatically different from the ones of text data, because the variable-length codes and other ... Journal on Wireless Communications and Networking 5 original data. Statistical analysis in [ 12] shows that the coded data have high randomness at the byte level. Based on this statistical...

Ngày tải lên: 21/06/2014, 11:20

... slots before issuing a DSC packet. Once again, it Table 1: Relevant simulation parameters. CSMA/CA PHY layer and 2C-WSN Parameter Value Parameter Value macMinBE 3 Radio datarate 250 kbps macMaxBE ... ends before attempting channel access. Thus, the 2C algorithm is able to provide guarantees for fair channel access. Each station participating in a CRI maintains a counter that controls...

Ngày tải lên: 21/06/2014, 11:20

... Wireless Systems, Barcelona, Spain, May 2010. [20] I. Askoxylakis, K. Markantonakis, T. Tryfonas, J. May, and A. Traganitis, A face centered cubic key agreement mechanism for mobile ad hoc networks,” ... following: there are two parties A, B that share a password P.Bothpartiesuse a suitable symmetric cryptosystem but entity A has also the ability to create a random asymmetric ke...

Ngày tải lên: 21/06/2014, 11:20

... the network performance parameters are evaluated, for example, packet delay and loss ratio. 5.1. Raw Signal Level. It is fundamental for HINT to acquire the internal signals accurately inside a sensor ... Conference on Sensor and Ad Hoc Communications and Networks (SECON ’04), Santa Clara, Calif, USA, October 2004. [7] S. Park, A. Savvides, and M. B. Srivastava, “SensorSim: a simulat...

Ngày tải lên: 21/06/2014, 17:20