over generalized fading channels

... v v=1 i=1 ⎟ ζi ⎟ ⎠ (33) Averaging (33) over the fading amplitudes and the number of interfering users, the PEP of coded FHSS systems over Rician fading channels with imperfect CSI is given by ... (11) and then averaging over the fading gains as discussed below (7) Denote by L = J − j0 the number of hops with nonzero weights Then, Pe (d) is determined by averaging over all possible hop patterns ... specular-todiffuse component ratio Another fading distribution is the Nakagami distribution, which was shown to fit a large variety of channel measurements In Nakagami fading channels, the pdf of the received...

Ngày tải lên: 21/06/2014, 23:20

... system and Alamouti MISO/MIMO STBC system over multipath fading channels (L = 4) communications with a high data rate and high performance over multipath fading channels First, for a multiuser uplink, ... considered is the uplink of a simplified single cell system over multipath channels For all simulations, a quasi-static multipath fading channel is assumed during each packet, as well as independence ... system model Consider an uplink multiuser MC-CDMA system with a low-PAPR property over multipath channels The overall block diagram of the proposed FSOK MC-CDMA transceiver is depicted in Figure...

Ngày tải lên: 20/06/2014, 22:20

... Rician fading channels, ” IEEE Communications Letters, vol 13, no 4, pp 227–229, 2009 [8] I.-H Lee and D Kim, “End-to-end BER analysis for dual-hop OSTBC transmissions over Rayleigh fading channels, ” ... Rician, and Nakagami-m fading channels, ” IEEE Transactions on Communications, vol 52, no 11, pp 1948–1956, 2004 [17] M K Simon and M Alouini, Digital Communication over Fading Channels, Wiley-IEEE ... bit/sec/Hz In Figures 2–4, the variances of Rayleigh fading channels 1/(αSNRT ) from the source antennas to the relay and the variance of Rayleigh fading channels 1/(βSNRT ) from the relay to the destination...

Ngày tải lên: 21/06/2014, 11:20

... 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 computer simulations ... diversity networks operating over independent but not necessarily identically distributed Rayleigh fading channels Novel closed-form expressions for the average SNR, amount of fading, symbol error probability, ... transmission over Nakagami fading channels, ” IEEE Communications Letters, vol 7, no 5, pp 216–218, 2003 [4] G K Karagiannidis, “Performance bounds of multihop wireless communications with blind relays over...

Ngày tải lên: 21/06/2014, 22:20

... the capacity analysis of PPM and PAM UWB systems over indoor fading channels with a single user The discussion also covers frequency flat fading channels The relationship between reliable communication ... Section for the capacity over indoor fading channels Finally, some conclusions are given in Section SIGNAL CONSTRUCTION AND STATISTICAL MODEL FOR MULTIPATH FADING UWB INDOOR CHANNELS 2.1 Signal construction ... (17) to evaluate the channel capacity of a UWB PPM system over frequency-selective channels Channel capacity over frequency-selective fading channels with a Rake receiver A Rake receiver processes...

Ngày tải lên: 21/06/2014, 22:20

... noninteger values of the Weibull fading parameter The PA technique indeed proves to be an invaluable tool in the performance analysis of communications over the Weibull fading channels ACKNOWLEDGMENT ... no 1, pp 61–78, 2000 [6] M.-S Alouini and M K Simon, “Performance of generalized selection combining over Weibull fading channels, ” in M H Ismail and M M Matalgah [7] [8] [9] [10] [11] [12] [13] ... for 8-PSK with single- and dual-branch MRC channels for m = and Figure 3: Simulated and PA outage probability for a dual-branch MRC system over Weibull fading channel for different values of m The...

Ngày tải lên: 22/06/2014, 22:20

... quantifying performance in fading channels, ” IEEE Transactions on Communications, vol 51, no 8, pp 1389– 1398, 2003 [14] E Biglieri, J Proakis, and S Shamai, Fading channels: information-theoretic ... analysis to study coding and modulation design for underspread time-varying fading channels Using the fact that underspread channels are approximately diagonalized by biorthogonal Weyl-Heisenberg ... contains some concluding remarks UNDERSPREAD TIME-VARYING FADING CHANNELS In this section, we introduce the time-frequency selective fading channel model, discuss the consequences of the underspread...

Ngày tải lên: 22/06/2014, 23:20

... examine STBC over general fading channels Three channel models, namely non-identical channels, time-selective channels and relay channels, are considered For STBC over non-identical channels, the ... Space-Time Block Codes over General Fading Channels 1.2.1 Non-identical Channels 1.2.2 Time-Selective Channels 10 1.2.3 Relay Channels ... 2.3.1 Rayleigh Fading Channels 24 2.3.2 Ricean Fading Channels 25 Effects of Non-identical Channel Parameters 27 2.4.1 Rayleigh Channels ...

Ngày tải lên: 14/09/2015, 14:05

... performance analysis with imperfect CSI over rapid fading channels has not been considered so far The performance analysis and code design of STTC over rapid fading channels are nearly untouched research ... Analysis of STTC over i.i.d Channels with Channel Estimation In this chapter, we focus on the performance analysis of STTC over rapid fading channels with channel estimation Here, i.i.d channels are ... et al [1] first evaluated the PEP of STTC over fading channels using a Chernoff bound Based on this PEP bound, a design criterion for STTC over fading channels was 30 3.1 INTRODUCTION presented...

Ngày tải lên: 14/09/2015, 17:55

... estimator using multiple-bit quantization in fading channels is still unavailable Although the MLE proposed in AWGN channels [9] can be applied for fading channels if the channel state information ... communications However, in fading channels, AF transmission is no longer optimal in orthogonal MACs [19–21] The outage laws of the estimation diversity with AF transmission in fading channels are studied ... in [19–21], which show that AF is not optimal in fading channels According to the performance analysis for BPSK modulation in Rayleigh fading channels [32], the BER of the transmission scheme...

Ngày tải lên: 18/06/2014, 22:20

... estimator using multiple-bit quantization in fading channels is still unavailable Although the MLE proposed in AWGN channels [9] can be applied for fading channels if the channel state information ... communications However, in fading channels, AF transmission is no longer optimal in orthogonal MACs [19–21] The outage laws of the estimation diversity with AF transmission in fading channels are studied ... in [19–21], which show that AF is not optimal in fading channels According to the performance analysis for BPSK modulation in Rayleigh fading channels [32], the BER of the transmission scheme...

Ngày tải lên: 20/06/2014, 04:20

... Communication over Fading Channels, 2nd edn (Wiley, New York, 2005) A Adinoyi, H Yanikomeroglu, S Loyka, Hybrid macro- and generalized selection combining microdiversity in lognormal shadowed rayleigh fading ... statistics analysis of macro-diversity system operating over Gamma shadowed Nakagami-m fading channels was recently proposed in [16] Moreover, to the best knowledge of the authors, no analytical ... and average fading duration (AFD) at the output of SC macro-diversity operating over the Gamma shadowed -μ fading channels Macro-diversity system of SC type consists of two micro-diversity systems...

Ngày tải lên: 20/06/2014, 22:20

... that all channels in such systems are assumed to be independent from each other In addition, single path flat fading channels are assumed in the prior works However, in practice, the channels ... impact of different types of modulations over additive white gaussian noise (AWGN) and Rayleigh fading channels on the effective transport capacity Moreover, it is assumed that the nodes are distributed ... comparable to the results in [14], we choose the value of m = for Nakagami-m fading channels, which represents Rayleigh fading channels The effects of 3D node distribution on the effective transport capacity...

Ngày tải lên: 21/06/2014, 05:20

... “Broadcast channels with confidential a messages,” IEEE Transactions on Information Theory, vol 24, no 3, pp 339–348, 1978 [4] Y Liang, H Poor, and S Shamai, “Secure communication over fading channels, ” ... consider secret sharing over a fast -fading MIMO wiretap channel Thus, we are interested in the CW model of [14] with memoryless conditionally independent destination and eavesdropper channels and continuous ... no 6, pp 2515–2534, 2008 [7] A Khisti, A Tchamkerten, and G Wornell, “Secure broadcasting over fading channels, ” IEEE Transactions on Information Theory, vol 54, no 6, pp 2453–2469, 2008 [8] S...

Ngày tải lên: 21/06/2014, 23:20

... the performance analysis for the coded and uncoded systems employing nonuniform MPSK over Rician slow -fading channels In Section 3, we provide a description of the JSCC methodology In Section the ... (5) However, as shown in [17, 18] the appropriate distance metric for fading channels must be modified to incorporate the fading effects In particular, the appropriate symbol metric for a Rician ... shows the 12th frame of Susie subsequence (N = 12) with overall rate held constant at rS = 128 Ksps for the AMC-JSCC system over a Rician fading channel with ζ = dB for channel ES /NI = 2, 5, 10,...

Ngày tải lên: 22/06/2014, 19:20

... in Multipath Fading Channels, vol 2402 of Lecture Notes in Computer Science, Springer, Heidelberg, 2002 [14] K W Yip and T S Ng, “Matched filter bound for multipath Rician -fading channels, ” IEEE ... multipath Rician fading channel consists of a specular component plus several Rayleigh fading components [14] The multipath Rician radio channel can be modeled as a modified Rayleigh fading channel ... fading, ” IEEE Trans Commun., vol 43, no 234, pp 1134–1143, 1995 [22] J G Proakis, Digital Communications, McGraw-Hill, New York, NY, USA, 1983 A Combined AA and RLSTT over Multipath Rician Channels...

Ngày tải lên: 23/06/2014, 00:20

... the approaches cited above assume slow or quasi-static fading channels In this paper, we focus on blind MUD for fast flat Rayleigh fading channels and in synchronous systems In particular, we assume ... detection of convolutional codes [15], space-time trellis codes [16], and blind MUD [17] over fading channels The mixture Kalman filtering (MKF) approach is shown to greatly reduce the error propagation ... drawn as for the previous case even though the overall performance of the detectors is worse, which is reasonable considering that the channels are fading faster In Figure 5, we provide the BER...

Ngày tải lên: 23/06/2014, 00:20

... 1, is presented as CHANNEL AND SYSTEM MODEL We consider a BPSK-modulated DS-CDMA system over a multipath fading channel Assuming K active users (k = 1, 2, , K), the low-pass equivalent signal ... USA, 1996 [3] G Raleigh, S N Diggavi, A F Naguib, and A Paulraj, “Characterization of fast fading vector channels for multi-antenna communication systems,” in Proc 28th Asilomar Conference on Signals, ... [3] L(k) −1 hk (τ) = βl(k) exp jϕ(k) V θl(k) δ τ − τl(k) , l (2) l=0 where βl(k) is the Rayleigh fading strength, ϕ(k) is its phase l shift, and τl(k) is the propagation delay The kth user’s lth...

Ngày tải lên: 23/06/2014, 01:20

... of channel capacity over quasistatic Rayleigh fading channels with OFDM scenario and ideal interleaving In this paper, the performance of MSDD combined with OFDM is analyzed over time- and frequency-selective ... error performance for TDMSDD and FD-MSDD over time- and frequency-selective Rayleigh fading channels As shown in [6] for single-carrier transmission over the time-selective channel, the BER can ... benefit of the optimal FD-MSDD over the suboptimal FDMSDD is apparent This stems from the fact that the optimal Performance Analysis of MSDD for OFDM over Fading Channels 1543 10−1 10−2 10−2 10−4...

Ngày tải lên: 23/06/2014, 01:20

... communications over generalized fading channels, ” IEEE Proc., vol 86, September 1998, pp 1860–1877 E Biglieri, C Caire, G Taricco, and J Ventura-Traveset, “Computing error probabilities over fading channels: ... ISBN 0-471-31779-9 Electronic ISBN 0-471-20069-7 Digital Communication over Fading Channels i Digital Communication over Fading Channels A Unified Approach to Performance Analysis Marvin K Simon Mohamed-Slim ... modulation over generalized fading channels, ” Int J Commun Networks, vol 1, June 1999, pp 111–117 J F Weng and S H Leung, “Analysis of M-ary FSK square law combiner under Nakagami fading channels, ”...

Ngày tải lên: 03/07/2014, 23:40