Results 131 to 140 of about 2,369 (180)

More on the Multipath Fading Channel Model

IEEE Transactions on Communications, 1981
Selective fading due to muitipath on a typical narrowband line-of-sight microwave radio path is represented with a simplified three-ray model. This model provides a satisfactory description of the frequency transfer characteristics of almost all fades observed during three separate propagation experiments. Data were obtained for a 30 MHz bandwidth at 6
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MMSE multiuser detection in multipath fading channels

1999 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings. ICASSP99 (Cat. No.99CH36258), 1999
In this work, we propose an MMSE multiuser detector for asynchronous DS/CDMA systems operating over frequency-selective fading channels. It is shown that computation of a conditional MMSE estimate of the bit to be decoded may be carried out with a computational burden linear in the processing gain N.
S. Buzzi, M. Lops, A. Tulino
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Bayesian MLSD for multipath Rayleigh fading channels

2008 IEEE International Conference on Acoustics, Speech and Signal Processing, 2008
We propose a tree-search based Bayesian approach to blind maximum likelihood sequence detection (MLSD) of convolutionally encoded data transmitted over a multipath Rayleigh fading channel. In deriving the path metric for searching the channel-code tree, the proposed algorithm incorporates a forgetting factor matched to the time variation of the channel
Hossein Roufarshbaf, Jill K. Nelson
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Performance of decorrelating receivers in multipath Rician fading channels

IEEE Transactions on Wireless Communications, 2005
This letter focuses on the performance analysis of the decorrelating receiver in multipath Rician faded CDMA channels. M-ary QAM scheme is employed to improve the spectral efficiency. Approximate expressions are first derived for the two performance indexes: the average symbol error rate (SER) and the average bit error rate (BER) when the decorrelating-
Kegen Yu, Ian J. Oppermann
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Identification of OFDM signals under multipath fading channels

MILCOM 2012 - 2012 IEEE Military Communications Conference, 2012
Modulation identification is an important part of wireless communications systems e.g., blind receivers can benefit from the methods that can identify the modulation of the received signals without a priori information. Moreover, distinction of OFDM systems from single carrier systems is highly important for adaptive receiver design algorithms.
Ali Gorcin, Hüseyin Arslan
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Blind automatic modulation classification in multipath fading channels

2017 22nd International Conference on Digital Signal Processing (DSP), 2017
Automatic Modulation Classification (AMC) has been deeply studied in the context of Cognitive Radio (CR) where it represents a required step between signal detection and demodulation. Several blind methods were proposed in the case of Additive White Gaussian Noise (AWGN) channels.
Gouldieff, Vincent, Palicot, Jacques, Daumont, Steredenn   +2 more
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Matched filter bound for multipath Rician-fading channels

IEEE Transactions on Communications, 1998
This paper derives an infinite series and an integral for computing matched filter bounds for binary phase-shift keying (BPSK) communications over a multipath Rician-fading channel of discrete or continuous dispersion. Based on the derived bound we compare intrinsic frequency diversity (IFD) gains for channels of different Rician factors.
Yip, KW, Ng, TS
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On the Secret-Key Capacity Over Multipath Fading Channel

IEEE Transactions on Information Forensics and Security
Dongtang Ma, Xiaoran Liu, Jun Xiong
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An adaptive channel estimator for CDMA systems in multipath fading channels

2001 IEEE International Conference on Acoustics, Speech, and Signal Processing. Proceedings (Cat. No.01CH37221), 2002
CDMA systems in multipath fading channels need to estimate channel parameters for coherent detection of the transmitted signals. We present a simple but effective channel estimation algorithm that can be incorporated into most types of multiuser receiver to obtain good detection performance.
Shan Mo, V. John Mathews
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Space-time channel tracking for multipath fast-fading channels

ICC 2001. IEEE International Conference on Communications. Conference Record (Cat. No.01CH37240), 2002
We use the parametric channel identification algorithm proposed by Chen, Kim and Liang (see IEEE Transactions on Vehicular Technology, p.1923-35, 1999) (to adaptively track the fast-fading channels for the multi-channel MLSE equalizer. The channel tracking scheme per-survivor processing recursive least square (PSP RLS) is considered.
Yeong-Cheng Wang, Jiunn-Tsair Chen
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