نتایج جستجو برای: nakagami distribution

تعداد نتایج: 609373  

2014
Shen Qian Tadashi Matsumoto Brian Michael Kurkoski

In this thesis, the outage probabilities of correlated sources transmission systems are analyzed. The primary goal of this work is to derive theoretical limit for correlated sources transmission which utilize the source correlation, and to establish theoretical bases for wireless cooperative communications system design utilizing the correlated sources transmission concept. We focus on the prob...

2017
DRAGANA KRSTIĆ Aleksandra Medvedeva

In this paper, wireless mobile communication system in the presence of short term fading, long term fading and co-channel interference subjected to short term fading is considered. Desired signal experiences Nakagami-m short term fading and Gamma long term fading, and co-channel interference experiences Nakagami-m short term fading. In interference limited wireless fading channel, the ratio of ...

Journal: :JCM 2010
Shujaat Ali Khan Tanoli Imran Khan R. M. A. P. Rajatheva

In this paper the performance of bit-interleaved coded modulation-iterative decoding (BICM-ID) based cooperative network is analyzed over Rayleigh, Nakagami-m and Rician fading channels. In this system coding diversity is obtained through BICM and spatial diversity through cooperative relaying network. The analysis is performed for the relays operating in both amplify-and-forward (AF) and decod...

2013
Philip A. Catherwood William G. Scanlon

This study presents the findings of an empirical channel characterisation for an ultra-wideband off-body optic fibre-fed multiple-antenna array within an office and corridor environment. The results show that for received power experiments, the office and corridor were best modelled by lognormal and Rician distributions, respectively [for both line of sight (LOS) and non-LOS (NLOS) scenarios]. ...

2013
Ming-Chih Ho Yu-Hsin Lee Yung-Ming Jeng Chiung-Nien Chen King-Jen Chang Po-Hsiang Tsui

Ultrasound grayscale B-mode imaging is the most frequently used modality for examining fatty liver. Different concentrations and arrangements of fatty droplets in the liver may produce different statistical distributions of ultrasound backscatter signals, which may be treated as a useful clue for assessing the stage of fatty liver. To verify this point, we investigate the relationship between c...

Journal: :JNW 2014
Doan Perdana Riri Fitri Sari

Ensuring high saturated throughput of SCHs and reducing the transmission delay of service packets on CCHs are one of the most challenging issues in multichannel operations IEEE 1609.4 standard. Moreover, multiple issues due to its highly dynamic topology, the high mobility, the change trajectory, and Nakagami propagation channel caused by Additive White Gaussian Noise (AWGN) are challenges in a...

Journal: :EURASIP J. Wireless Comm. and Networking 2012
Gulzaib Rafiq Bjørn Olav Hogstad Matthias Pätzold

This article deals with the derivation and analysis of the statistical properties of the instantaneous channel capacity of N*Nakagami-m channels, which has been recently introduced as a suitable stochastic model for multihop fading channels. We have derived exact analytical expressions for the probability density function (PDF), cumulative distribution function (CDF), level-crossing rate (LCR),...

2016
Chin-Kuo Chen Jui Fang Yung-Liang Wan Po-Hsiang Tsui

Ultrasound detection of middle ear effusion (MEE) is an emerging technique in otolaryngology. This study proposed using ultrasound characterization of the mastoid to noninvasively measure MEE-induced mastoid effusion (ME) as a new strategy for determining the presence of MEE. In total, 53 patients were enrolled (Group I: normal, n = 20; Group II: proven MEE through both otoscopy and tympanometr...

1992
Yu-Dong Yao

A microcell interference model termed the Nakagami m,/m, is introduced in this paper. The desired signal as well as the cochannel interferers are assumed to have Nakagami statistics but with different amounts of fading. A special case of this model is obtained when the desired signal has Nakagami statistics while the cochannel interferers are subject to Rayleigh fading. The probability density ...

Journal: :EURASIP J. Adv. Sig. Proc. 2010
Wamberto J. L. Queiroz Waslon Terllizzie A. Lopes Francisco Madeiro Marcelo Sampaio de Alencar

This paper presents an alternative method for determining exact expressions for the bit error probability (BEP) of modulation schemes subject to Nakagami-m fading. In this method, the Nakagami-m fading channel is seen as an additive noise channel whose noise is modeled as the ratio between Gaussian and Nakagami-m random variables. The method consists of using the cumulative density function of ...

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