[PDF] Top 20 OFDM synchronization for the MIMO testbed

... 30 Test setup 5 converted back to a Matlab readable format. The data conversion between the IT++ format and the Matlab variable format is done by two Matlab scripts called itload.m and itsave.m respectively. These files ... See full document

... applications. MIMO-OFDM is one of the techniques used in wireless communication ...technology. MIMO-OFDM technology can work very well on multipath ...components. MIMO is a technique ... See full document

... wireless testbed for students and ...of MIMO- OFDM is implemented on the WARP module, where the MIMO technique is intended as a diversity technique to get power efficiency by maximizing the ... See full document

... in MIMO de- coding algorithms usually do not attract much attention ...ted synchronization, linear power amplification, and perfect channel knowledge, which often show too optimistic receiver performance in ... See full document

... the testbed are as ...based OFDM symbol configuration is used, the CP has a duration of ...an OFDM symbol), we need to increase the FFT block ... See full document

... [7] H. Meyr, M. Moeneclaey, and S. A. Fechtel, “Digital Communication Receivers”, John Wiley and Sons, 1998. [8] Y. Li, J. H. Winters, and N. R. Sollenberger, “Mimo-Ofdm for Wireless Communications, Signal ... See full document

... Since synchronization and channel estimation are mutu- ally related, joint channel estimation and synchronization would provide better performance ...uncoded MIMO-OFDM systems but these ... See full document

... The MIMO-OFDM technology is the most efficient way to transmit through any next generation wireless ...a MIMO system up to a remarkable extent then that may prove to be the best transmission system ... See full document

... space division (SD) multiple access is implemented to en- able an efficient medium access in time, code, and space do- main. Equalization of frequency-selective MIMO channels is realized by joint detection in the ... See full document

... Robert Hang received the “Dipl ˆome d’Ing´enieur” (M.Eng.) from ENSEA, Cergy, France, and the M.S. degree from the University of Alberta, Edmonton, AB, Canada, both in electrical engineer- ing, in 1996 and 1998, ... See full document

... for MIMO-OFDM systems, extra signal processing such as enhanced joint channel and frequency offset estimation is needed to obtain a good performance and approach in practice the theoretical capacity ... See full document

... data rates, ST-BICM provides larger performance advantage. As stated before, selection diversity and TxAA are sub- optimal, in the sense that they exploit CSIT to transmit only over a single mode of the channel, and ... See full document

... The aim of this survey is to investigate channel estimation method with carrier frequency offset in MIMO-OFDM systems. According to this, using maximum likelihood estimation algorithm (MLE), the carrier ... See full document

... In MIMO, the signal received at each receiving ante- nna is the superposition of the transmitted signals that from different transmit ...for MIMO-OFDM, since the preamble is usually generated in the ... See full document

... In order to enhance the estimation performance, averaging over subsequent OFDM blocks is beneficial. Besides the fixed small estimation range of half of the carrier spacing, the estimator in Eq. (21) – in contrast ... See full document

... As shown in Fig2, when the centers of adjacent subcarriers are shifted because of the frequency offset, the adjacent subcarriers nulls are also shifted from the center of the other subcarrier. The received signal ... See full document

... Here we compare the compare the performance of existing algorithm and proposed algorithm in terms of time metric and BER performance. For simulation we are using Matlab software. The key parameters for of OFDM ... See full document

... a MIMO system, but implementing such a system involves several distinctly different radio ...communications. OFDM can provide large data rates with sufficient robustness to radio channel ...of OFDM ... See full document

... Where Y is the received vector, X is a matrix containing the transmitted signaling points on its diagonal, h is a channel attenuation vector, and n is a vector of i.i.d. complex, zero mean, Gaussian noise with variance ... See full document

... [4] Molisch, A.F., Steinbauer, M., Toeltsch, M., Bonek, E. and Thoma, R.S. (2002) Ca- pacity of MIMO Systems Based on Measured Wireless Channels. IEEE Journal on Selected Areas in Communications , 20, 561-569. ... See full document