Error probability analysis for STBC in rayleigh fading channels

... closed form expressions for the BER in flat Rayleigh fading channels Shin et al [24] provided a closed form symbol error probability (SER) expression for STBC over flat Rayleigh fading channels using ... STBC system model in flat fading channels and Maximum-likelihood decoding rule for STBC in flat fading channels In Chapter we extend the STBC system model in Chapter into frequencyselective fading ... thesis we investigate the error rate performance of STBC, by theoretical analysis in both flat and frequency-selective Rayleigh fading channels For flat Rayleigh fading channels, following the...

Báo cáo hóa học: " Bit Error Rate Analysis for MC-CDMA Systems in Nakagami-m Fading Channels" potx

... λ − jvλ dλ dv dφ sinφ J(v,φ) (29) BER Analysis for MC-CDMA in Nakagami-m Fading Channels The integral of J(v, φ) can be obtained as [16] where W(v, φ) = R(v, φ) cos Θ(v, φ), sin2 φ v 2A2 Y (v, ... channel The fading channels used in computer simulations are Rayleigh (corresponding to m = 1) fading channels and Nakagami-m fading channels (m = is selected) Both the uplink and downlink are considered ... accurate in the downlink MRC is not practical for the downlink as the loss of orthogonality of the WH codes is emphasized in the receiver when applying it In the downlink, EGC outperforms MRC in...

Báo cáo hóa học: " Performance Analysis of Multiple-Symbol Differential Detection for OFDM over Both Time- and Frequency-Selective Rayleigh Fading Channels" doc

... application of (39) and (40), however, does not yield a tight bound of the bit error performance for TDMSDD and FD-MSDD over time- and frequency-selective Rayleigh fading channels As shown in [6] for ... Performance Analysis of MSDD for OFDM over Fading Channels (AWGN) channel In order to reduce this gap between the coherent detection and conventional DD, the multiple-symbol diﬀerential detection ... provide a good performance at a low computational complexity Since it has been shown that MSDD and DF-DD are Performance Analysis of MSDD for OFDM over Fading Channels equivalent and DF-DD can...

Báo cáo hóa học: "Channel length assisted symbol synchronization for OFDM systems in multipath fading channels" potx

... Cite this article as: Chin: Channel length assisted symbol synchronization for OFDM systems in multipath fading channels EURASIP Journal on Wireless Communications and Networking 2011 2011:68 Received: ... Chen, A blind synchronizer for OFDM systems based on SINR maximization in multipath fading channels IEEE Trans Veh Technol 58(2), 625–635 (2009) 19 WL Chin, SG Chen, A low-complexity minimum-interference ... explicitly in this work This work presents a new synchronization algorithm, assisted by channel length information, for OFDM systems based on the redundancy of CP ISI significantly increases with symbol...

Báo cáo hóa học: " Research Article Performance Analysis of Two-Hop OSTBC Transmission over Rayleigh Fading Channels" ppt

... detection of OSTBCs for the case of spatially colored noise given in [11], the received SNR is obtained as follows Theorem Using the exact relay gain, the received SNR of two-hop AF OSTBC transmission ... “End-to-end BER analysis for dual-hop OSTBC transmissions over Rayleigh fading channels,” IEEE Transactions on Communications, vol 56, no 3, pp 347–351, 2008 [9] R H Y Louie, Y Li, and B Vucetic, Performance ... Networking,” March 2009 [5] M O Hasna and M.-S Alouini, “End-to-end performance of transmission systems with relays over Rayleigh- fading channels,” IEEE Transactions on Wireless Communications, vol...

Báo cáo sinh học: " Research Article Low Complexity MLSE Equalization in Highly Dispersive Rayleigh Fading Channels" pot

... Recording, Springer, New York, NY, USA, 1996 [14] H C Myburgh and J C Olivier, Low complexity iterative MLSE equalization of M-QAM signals in extremely long rayliegh fading channels,” in Proceedings ... of interfering symbols in these channels, the use of conventional optimal equalization algorithms are infeasible In this paper, a low complexity MLSE equalizer, ﬁrst presented by the authors in ... performance increases with an increase in L From these results in is clear that the BER performance increases with an increase in L The HNN MLSE equalizer thus exploits sparsity in communication...

báo cáo hóa học:" Multiuser diversity in correlated Rayleigh-fading channels" doc

... interesting for people involved in WINNER+, 3GPP or the ones working on scheduling between close users, for instance scheduling in single-cell networks, e.g., [25–28] System model In this part, we consider ... correspondingly the channel gains, receive powers as the average transmission power constraint increases Particularly, λ∗ → as T → ∞ • Assuming independent fading channels, i.e., setting β = in (3), ... for scheduling in the cases where the users are close to each other, for instance in single-cell networks Finally, extending the results to the case of cellular networks is an interesting topic...

Báo cáo hóa học: " An Implementation of Nonlinear Multiuser Detection in Rayleigh Fading Channel" docx

... simulations was an unknown Rayleigh ﬂat -fading channel in which the fading gains were independent, identically distributed complex Gaussian random variables with zero mean and unit variance The path ... (BER) performance of the proposed blind ICA receiver in the slow Rayleigh fading channel is presented in Figures and The results show that when the processing gain NPG = 127, the standard matched ... Journal of Applied Signal Processing Wai Yie Leong et al Danilo P Mandic is a Reader in Signal Processing at Imperial College London, UK He has been working in the area of nonlinear, blind, and...

Báo cáo hóa học: " Research Article Performance of Multiple-Relay Cooperative Diversity Systems with Best Relay Selection over Rayleigh Fading Channels" pdf

... Error performance for the best- relay selection scheme over Rayleigh fading channels Figure 3: Outage performance for path the best- relay selection scheme over Rayleigh fading channels of the ... 25 30 Regular cooperative networks The best- relay selection scheme Figure 4: Comparison between the regular cooperative diversity and the best- relay selection scheme over Rayleigh fading channels ... 30 35 Regular cooperative networks The best- relay selection scheme Figure 5: Comparison between the regular cooperative diversity and the best- relay selection scheme over Rayleigh fading channels...

Báo cáo hóa học: " Research Article Exploiting Transmit Buffer Information at the Receiver in Block-Fading Channels" ppt

... FF information Receive FB information Determine FB information using CSI and FF information Transmit data using rate and power determined from buffer state and FB information Transmit FB information ... in formulating the optimization problem in the presence of transmit buffer information at the receiver 3.1 Channel Quantizer Specification In this case, since no information about the transmit buffer ... to the receiver, even in single-user scenarios, to reduce packet error rate by making more efficient use of the channel state information at the receiver In a multiuser scenario, information on the...

Báo cáo hóa học: " Research Article How Equalization Techniques Affect the TCP Performance of MC-CDMA Systems in Correlated Fading Channels" pot

... paper, we investigated the impact, at both physical and TCP levels, of different combining techniques for the downlink of MC-CDMA systems By means of an integrated platform carefully taking into account ... Considering that, exploiting the orthogonality of the code, all the different users use the same carriers, the total transmitted signal results in (being in the downlink, the phase is the same ... investigated EQUALIZATION TECHNIQUES FOR MC-CDMA SYSTEMS Within the family of linear combining techniques, different schemes based on the channel state information are known in the literature (see,...

Báo cáo hóa học: "Optimal Training for Time-Selective Wireless Fading Channels Using Cutoff Rate" potx

... 3(a) for the GM model: energy-optimized training is seen to provide a noticeable increase in the cutoff rate for slower fading channels, but not for rapidly fading channels Further, optimized training ... considered cutoff rate optimal training within a PSAM framework for time-selective Rayleigh flat -fading channels For M-PSK inputs, we have derived in (23) a simple expression for the interleaved cutoff ... high SNR Among related work on optimal training for point-topoint time-selective Rayleigh flat -fading channels, only [14] offers analytic results for the optimal training period and energy allocation...

Adaptive transmission techniques in wireless fading channels

... ADAPTIVE TRANSMISSION TECHNIQUES IN WIRELESS FADING CHANNELS CHEN XUN A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL & COMPUTER ENGINEERING NATIONAL ... two independent cataloging mechanisms are set up The type of the fading is said to be frequency-selective fading or flat fading based on delay spread, while it is said to be fast fading or slow fading ... fading parameter (also known as fading index or fading figure in different context), Ω is the average received power of the signal and Γ(·) is the Gamma function [76] As shown in [75], the fading...

Báo cáo hóa học: " Average bit error probability for the l-MRC detector under Rayleigh fading" potx

... an expression for the bit error probability when the fading coefficients vary according to a Rayleigh distribution A Bit Error Probability The bit error probability associated with the signal from ... /Nc ) The optimal detector shown in [1] is rather complex and does not have a closed-form expression for the resulting bit error probability Thus, they consider the following suboptimum detector ... expression can be prohibitive For this reason, we found a very accurate approximation for the bit error probability presented in the sequel B Approximate Bit error Probability The main problem in...

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