نتایج جستجو برای: رادار mimo

تعداد نتایج: 19095  

2013
Madhvi Jangalwa

Orthogonal Frequency Division Multiplexing (OFDM) technique has been proposed as a standard for the next generation wireless communication system. Next generation wireless communication technologies require multimedia service such as internet services, audio, video and mainly high data rate with high mobility. OFDM fulfills these requirements. It provides high data rates and high spectral effic...

2016
Atul Kumar Mishra Saurabh Gaur

With the increasing demands of data communication speed for different type of data transmission, many revolutions occur with time in wireless communication system. The use of MIMO for wireless data transmission has proven itself for enhancing the capacity of data transmission. The mobile network based on the cell structure also uses the MIMO techniques. Further research in the field of massive ...

Journal: :IET Communications 2008
Anastasios Gravalos Marios G. Hadjinicolaou Qiang Ni Rajagopal Nilavalan

A novel scheme using spatial data stream multiplexing (SDSM) in the upcoming multiple-input multipleoutput (MIMO)-based IEEE 802.11n physical layer is proposed. It is shown that with SDSM, the same data rate can be achieved by using less number of transmit and receive antennas and therefore this scheme can reduce the number of antennas which results in reducing mutual coupling effects, hardware...

2012
M. S. R Mohd Shah M. Z. A Abdul Aziz M. K. Suaidi

Recently, Multiple Input Multiple Output (MIMO) has become popular research topic among researchers for development of a new wireless communications technology. The system capacity can be increase with deployment of MIMO technique in the communications system. Thus, the used of high frequency bandwidth can be avoid since this method required high cost implementation. High transmitted power also...

2010
Sebastian Aust Andreas Ahrens César Benavente-Peces

Abstract: Multiuser multiple-input multiple-output (MIMO) downlink (DL) transmission schemes experience both multiuser interference as well as inter-antenna interference. Instead of treating all the users jointly as in zero-forcing (ZF) multiuser transmission techniques, the investigated singular value decomposition (SVD) assisted DL multiuser MIMO system takes the individual user’s channel cha...

Journal: :CoRR 2007
Jia Liu Yiwei Thomas Hou Hanif D. Sherali

THIS PAPER IS ELIGIBLE FOR THE STUDENT PAPER AWARD. It has been shown recently that the dirtypaper coding is the optimal strategy for maximizing the sum rate of multiple-input multiple-output Gaussian broadcast channels (MIMO BC). Moreover, by the channel duality, the nonconvex MIMO BC sum rate problem can be transformed to the convex dual MIMO multiple-access channel (MIMO MAC) problem with a ...

1996
Ye Li

This paper investigates adaptive blind equalization for multiple-input and multiple-output (MIMO) channels and its application to blind separation of multiple signals received by antenna arrays in communication systems. The performance analysis of the CMA equalizer used in MIMO channels is first presented. Our analysis results indicate that for the MIMO FIR channels satisfying certain condition...

Journal: :IEICE Transactions 2012
Masashi Itagaki Tetsuya Yamamoto Kazuaki Takeda Fumiyuki Adachi

Multi-user multi-input multi-output (MIMO) system has been attracting much attention due to its high spectrum efficiency. Nonlinear MIMO signal detection methods with less computational complexity have been widely studied for single-user MIMO systems. In this paper, we investigate how a lattice reduction (LR)-aided detection and a maximum likelihood detection (MLD) employing the QR decompositio...

2013
Md. Abdul Latif Sarker Moon Ho Lee

Matrix inversion algorithm acting an important role in MIMO wireless communication.In this paper, we presenta matrix inversion algorithm and it’s applications in the high speed MIMO LTE receiver which is based on floating point DSP. Matrix operations are the most costly computational module within MIMO receivers but a matrix inversion algorithm is very easy to compute and significantly reduce t...

2011
Adrian Kliks Paweł Sroka Mérouane Debbah

In this paper the application of the concept of crystallized rate regions to MIMO transmission with femtocell interference is investigated. Based on the referenced work a new game definition specifying the new cost function derived for MIMO transmission with femtocell interference is proposed. Furthermore, the idea of channel approximation for complexity reduction is described. Finally, the sim...

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