نتایج جستجو برای: mimo systems
تعداد نتایج: 1193675 فیلتر نتایج به سال:
This paper presents and compares antenna selection strategies for frequency selective MIMO-OFDM channels. Real channels are measured, and used to evaluate performance. Results for simulated TGn channel models are also presented. We show that the capacity gain predicted from the simulated channels, is significantly lower than can be achieved over real channels. This supports the use of antenna s...
Multiple-input multiple-output (MIMO) wireless communication systems are of increased interest due to their high spectral efficiency and substantial diversity. Full characterization of the MIMO channel is very important, yet remains a challenge due to the complex electromagnetic interactions between the antenna elements and the environment. We use computational electromagnetics (CEM) to study t...
The Military is embracing the communication revolution, turning to a new generation of sophisticated systems to enable faster, richer, less costly, more flexible, reliable, compact, mobile, jam resistant, low probability of detection, re configurable and spectrally efficient communication. Many of these features can be added to a great extent in the existing systems, by utilising MIMO technolog...
Multiple-input multiple-output (MIMO) wireless technology in combination with the orthogonal frequencydivision multiplexing (MIMO-OFDM) is an attractive air interface solution for next-generation wireless local area networks (WLANs). Among the various resources in MIMO multicarrier systems the multiplexing rate assignment is related to the rate of transmissions. Here we proposed a new hybrid cy...
By adopting multiple-input multiple-output (MIMO) and orthogonal frequency-division multiplexing (OFDM) technologies, indoor wireless systems could reach data rates up to several hundreds of Mbits/s and achieve spectral efficiencies of several tens of bits/Hz/s, which are unattainable for conventional single-input single-output systems. The enhancements of data rate and spectral efficiency come...
Polynomial singular value decomposition (PSVD) plays a very important role in broadband multiple-input multiple-output (MIMO) systems. One of its applications lies in the decoupling of MIMO convolutive mixing channel matrix in order to recover the transmitted signals corrupted by the channel interference (CI) at the receiver. In this paper, a novel algorithm, known as multiple shift second orde...
MIMO (Multiple Input Multiple Output) enabled systems are characterized by higher reliability and transmission rates, as compared to conventional SISO (Single Input Single Output) systems. However, unless administered properly, the MIMO technology may not facilitate very high throughputs on point-to-point wireless links. Therefore, it becomes imperative for the network architect to design such ...
In this paper, a novel technique known as Cooperative Communication in MIMO has been incorporated. This technique allows single antenna mobiles to have the benefits of MIMO systems. Numerical analysis and mathematical modeling is done for SISO with no cooperation, MIMO with no cooperation and MIMO with cooperation or Cooperative MIMO. Expressions for SNR, Outage probability and capacity over a ...
In this paper a 3D channel model for wireless communication is studied. Also this paper enlightens the difficulties of the analysis of 3D channel model as there are several geometric parameters are required to perform the analytical correlations and to see how the channel depends on those parameters. The reason for preferring MIMO systems which is based on information theory point of view is th...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید