80 results found.
Year: 2014, Volume: 14, Number: 4
... ]. The spatial diversity is still the fading, a solution would be using multiple transmit and accomplished under the influence of non-Gaussian noise [9 ], receive antennas [1 ], or alternative techniques, called the cooperative relaying being significantly better than cooperative diversity or cooperative communication [2]. direct transmission for low ...
Terms matched: 1 - Score: 3 - 785k
Year: 2014, Volume: 14, Number: 3
... the switching [1 ], [2] and, more generally, for antenna drivers [3] because frequency forcing thus the main Fourier component of the ... single function T(j‰, D) for a particular D can multitude of antennas at the user's choice and in some attenuate "better" than PT( ...
Terms matched: 2 - Score: 44 - 800k
Year: 2014, Volume: 14, Number: 2
... Radio frequency identification (RFID) is the coverage in a 3D space. The antenna coverage pattern of widely used identification system that uses radio frequency for mobile reader ... get the information from the tags. The mobile reader the positioning of RFID reader antennas, which is necessary moves within its selected area, if any tag comes ...
Terms matched: 2 - Score: 29 - 1,674k
Year: 2014, Volume: 14, Number: 2
... single HI message in AWGN and fading channel models are presented depending on the representative antenna modes. The performance results for a number of HI messages greater than one ... according to Individual bits in HI codeword b are modulated using the number of transmitting antennas [7]. The PHICH is BPSK modulation and produce a vector of ...
Terms matched: 2 - Score: 57 - 765k
Year: 2014, Volume: 14, Number: 1
... ,18], using Agilent laptop with specialized measuring software Dran-View 6, a N9344C handheld spectrum analyzer, equipped with the three-phase PowerVisa power quality analyzer equipped indoor antenna and U2020X power sensor. with 8 independent channels and a data-logger, current To avoid the rush hours and interference from the other clamps for measuring currents of ...
Terms matched: 1 - Score: 5 - 652k
Year: 2014, Volume: 14, Number: 1
... for the reliable communication of D2D antennas, each user is equipped with a single antenna, and systems, which lowers the performance of cellular the BS knows all ... the BS is equipped with multiple reduce their power for the reliable communication of D2D antennas, each user is equipped with a single antenna, and systems, which ...
Terms matched: 2 - Score: 6 - 1,091k
Year: 2013, Volume: 13, Number: 4
... Salazar- Palma, "A survey of various propagation models for mobile accuracy is presented in Fig. 12. It was found that our communication," IEEE Antennas and Propagation Magazine, vol. 45, proposed method has a superior accuracy of 88.75% than no. 3, pp. 51-82, 2003. the ...
Terms matched: 1 - Score: 8 - 717k
Year: 2013, Volume: 13, Number: 4
... . We employ the two ray ground congestion detection threshold 1 € 1, i.e., the node starts reflection model [22], and a single omni-directional antenna adjusting its contention window when there are packets in at each sensor node. We load packets through a constant bit its buffer, and 2 € 3Qmax ...
Terms matched: 1 - Score: 3 - 789k
Year: 2013, Volume: 13, Number: 2
... performance in the iterative decoding sequence u. algorithm, particularly in the case of space-time turbo codes The MAP algorithm performs the following operations: with large number of antennas.- it calculates a branch metric γ() for each branch of a However, in all previous studies, only SBTCs were trellis section. The ...
Terms matched: 1 - Score: 6 - 823k
Year: 2013, Volume: 13, Number: 2
... Advances in Electrical and Computer Engineering Volume 13, Number 2, 2013 Antenna Radiation Pattern Influence on the Localization Accuracy in Wireless Sensor Networks Eugen COCA, Valentin ... node being crucial in all practical cases, techniques such as radio maps or directive antennas for the complex algorithms in nodes are not the best solution. Also, ...
Terms matched: 2 - Score: 94 - 678k