نتایج جستجو برای: outage probability

تعداد نتایج: 220840  

Journal: :EURASIP J. Wireless Comm. and Networking 2011
Prabhat Kumar Upadhyay Shankar Prakriya

This paper investigates the performance of an outage-optimal opportunistic scheduling scheme for a multiuser two-way relay network, wherein an analog network coding-based relay serves multiple pairs of users. Under a Rayleigh flat-fading environment, we derive an exact expression for cumulative distribution function (CDF) of the minimum of the two end-to-end instantaneous signal-to-noise ratios...

2013
Sungjoon Park

System Design and Outage Analysis for Cooperative Diversity Wireless Networks by Sungjoon Park Chair: Wayne E. Stark Relay communication systems have recently been gaining momentum as an alternative to cellular architectures because of the ability to provide cost-efficient high spectral efficiency communications. The goal of this thesis is to investigate opportunistic relay communication strate...

2009
A. Annamalai

A unified expression for computing the probability of outage in cellular mobile radio systems is derived. The method handles non-integer Nakagami fading indexes, unequal Rice factors, dissimilar shadowing spreads, unequal transmit powers as well as all the common fading distributions (Rayleigh, Rice, Nakagami-m, Nakagami-q, lognormal-Rice, Suzuki and lognormal-Nakagami-m). The exact outage prob...

Journal: :EURASIP J. Wireless Comm. and Networking 2014
Raza Ali Shah R. M. A. P. Rajatheva Yusheng Ji

Subcarrier mapping (SCM) is considered to be crucial for capacity-maximization in an orthogonal frequency division multiplexing (OFDM) relaying network. Although SCM in an OFDM system has been investigated extensively, nevertheless, the outage probability and outage capacity analysis of the system is not yet available in the literature. This paper presents the outage analysis of a dual-hop OFDM...

1996
Michele Zorzi

Michele Zorzi, Member, IEEE Abstract— In this paper the performance of a cellular mobile radio system with frequency reuse is evaluated, in terms of outage probability. Deterministic path loss, log-normal shadowing and Ricean fading are accounted for, and the use of diversity and power control is considered in order to enhance the system performance. Both hexagonal and lineal cells are consider...

Journal: :IEICE Transactions 2009
Nurilla Avazov Yun Hee Kim Iickho Song

In this letter, we propose a multi-cell cooperation method for broadcast packet transmission in the OFDM-based cellular system with multiple transmit antennas. In the proposed method, to transmit two streams of spatially demultiplexed or transmit diversity coded symbols, we divide a coded packet into subparts to each of which different cell group and antenna pairs are assigned. It is shown that...

Journal: :IEEE Trans. Vehicular Technology 2015
Behrooz Makki Tommy Svensson Thomas Eriksson Mohamed-Slim Alouini

We study the energy-limited outage probability of the block space-time coding (STC)-based systems utilizing automatic repeat request (ARQ) feedback and adaptive power allocation. Taking the ARQ feedback costs into account, we derive closed-form solutions for the energy-limited optimal power allocation and investigate the diversity gain of different STCARQ schemes. Also, sufficient conditions ar...

2016
Yao Chenhong Pei Changxing

In this paper, we investigate the secrecy outage probability (SOP) for the cooperative amplify-and-forward (AF) two-way relay networks (TWRN) with channel estimation (CE) errors under Rayleigh fading channels. In the proposed system, two sources simultaneously broadcast their respective information to all the relays firstly. Then, the optimal relay performs AF protocol on the received signals s...

Journal: :Wireless Personal Communications 2015
Nagendra Kumar Vimal Bhatia

We analyze and study the performance of amplify-and-forward cooperative diversity communication network with best-relay selection over Weibull fading channel. In this paper, a closed-form expression for the moment generating function (MGF) of the total signal-to-noise ratio at the destination is derived in terms of the tabulated Meijer’s G-function. By the help of this derived MGF expression, w...

Journal: :JCM 2009
Wasiu O. Popoola Zabih Ghassemlooy Erich Leitgeb

-In this paper a differential phase shift keying (DPSK) subcarrier intensity modulated (SIM) free space optical (FSO) link is considered in negative exponential atmospheric turbulence environment. To mitigate the scintillation effect, the selection combining spatial diversity scheme (SelC) is employed at the receiver. Bit error rate (BER) and outage probability (Pout) analysis are presented wit...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید