[PDF] Top 20 Adaptive selection of antenna grouping and beamforming for MIMO systems

... Conceptually, in the A5 algorithm, if the maximum of (|A| + |F|), (|B| + |E|), and (|C| + |D|) is large, then it is safe to select antenna grouping. However, if the sum of smaller two of (|A| + |F|), (|B| + ... See full document

... and Adaptive Antenna Systems (AAS) ...both MIMO and AAS is proposed. In the proposed algorithm, either MIMO or AAS will used at a time according to the environment and has been ... See full document

... Figure 7: Performance evaluation of Frobenius-norm-based algo- rithm for several schemes of receive antenna subarray formation (RASF) applied to a 16 × 4 MIMO measured channel, in terms of er- godic ... See full document

... an adaptive MIMO system equipped with MRAs will not be constrained to em- ploy a fixed antenna design over varying channel condi- ...an adaptive MIMO system and permits the ... See full document

... conventional antenna selection MIMOOFDM ...adaptiveantenna selection method where both the number of active RF(radio frequency) chains and the antenna indices are selecteddepending on the ... See full document

... broadcast beamforming does not need to be real-time with high calculation speed, traditional GA is selected to optimize the ...an adaptive global optimization algorithm of probability search which simulates ... See full document

... Wireless users use radio frequency (RF) channels for data and message communication. The recent research reviles that the most appropriate to tackle the issues related to spectrum utilization is a function of time and ... See full document

... large-scale MIMO systems is considered in ...by antenna selection in SM is addressed in [17] considering Euclidean distance and capacity of the system, while in [18], the authors use circle ... See full document

... of adaptive MIMO beamforming is carried out to improve the effect of the frequency selective fading in wireless communication system as compared to Ergodic capacity using the spectral efficiency as ... See full document

... an antenna selection algorithm in massive Abstract: Massive multiple-input-multiple-output (MIMO) systems are an exciting area of fifth-generation (5G) technology and very important in ... See full document

... The 60 GHz millimeter wave communication has received significant recent attention, and it is considered as a promising technology for short-range broadband wireless transmission with data rate up to multi-giga bits/s ... See full document

... optimal beamforming using the equal power allocation, which enhanced the system performance and increased the data rate when the power was allocated to equal users in the same ... See full document

... Monte Carlo simulations are performed for a wireless system with multiple antennas to evaluate the perfor- mance of the proposed selection criterion. For the sake of simplicity, we consider only transmit ... See full document

... The optimized design with dimensional details of the proposed MIMO antenna is illustrated in Fig. 1.The dimensions are in millimetre (mm): W=120, L=160, a=10, b=20, c=20, d=60, e=20, f=20, g=10, h=30, i=60, ... See full document

... In wireless telecommunications, multipath is the propagation phenomenon that results in radio signals reaching the receiving antenna by two or more paths. Causes of multipath include atmospheric ducting, ... See full document

... Smart antenna (SA) technology is gaining more and more interest in increasing the wireless network capacity [1] that helps to meet the demand for the subscriber growth and the high ...Smart antenna is ... See full document

... inter-element spacing equals to 0.5 λ. Transmit antenna selection and beam selections are performed at transmit- ter side. We can see from these figures that with extra antennas the hybrid scheme is capable ... See full document

... an adaptive array arrangement for optimizing the smart antenna ...array. Adaptive beamforming [6], [8] generally more useful and effective beamforming solution because the digital ... See full document

... Wide band code division multiple accesses (WCDMA) has been proposed to satisfy ever-increasing demands for higher data rates, as well as to allow more users to sim- ultaneously access the network [1]. So, it is employed ... See full document

... Compact MIMO antenna for Ultra-Wideband applicationsis designed and ...designed antenna can cover the ...patterns, antenna gain, envelope correlationcoefficient, and time domain response have ... See full document